Seattle Seahawks T-Shirt , agile 鈥?and ambidextrous, apparently.Thanks in part to a nifty left-handed throw as he was about to get sacked by Von Miller at midfield on the game-winning drive, the right-handed Mahomes rallied the unbeaten Kansas City Chiefs past the Denver Broncos 27-23 on Monday night.By overcoming a 10-point fourth-quarter deficit, the Chiefs (4-0) took a two-game lead over the Broncos (2-2), their AFC West rivals whom they've now beaten six straight times.The only other remaining unbeaten team is the Los Angeles Rams.Down 23-13, Mahomes directed a 12-play, 75-yard drive that ate up more than six minutes and culminated with a 2-yard TD toss to tight end Travis Kelce.After a three-and-out by Denver, Mahomes added a 60-yard touchdown drive, handing off to Kareem Hunt for the 4-yard score with 1:39 remaining.On that last drive, Mahomes was getting dragged down by Miller on third-and-5 at midfield when he shifted the ball to his left hand and threw it to Tyreek Hill a yard past the first-down marker at the Broncos 49."He's actually more athletic than people" realize, Denver linebacker Brandon Marshall said. "People talk about his arm, but he can move out of the pocket and make the necessary throws."Even with his left hand."I didn't know he threw it with his left hand," marveled Miller. "He's a great quarterback.""Patrick worked real hard on that left-handed throw," Chiefs coach Andy Reid quipped. "Some amazing plays there. We've seen it in practice but not under those conditions."Mahomes proved slippery all night."We played well and we got to him but he would scramble out to his right as he likes to do," Marshall said. "It's almost like we'd have him in our fingertips and he'd scramble away and throw for a first down."The kid can play. He's going to be really good. He's really good right now, but we should have won the game."It was the first time since 2004 that the Broncos blew a 10-point fourth-quarter lead at home.RUN, ROOKIES, RUNIn between Kansas City's scoring drives, the Broncos, who had run roughshod over the Chiefs all night 鈥?a 7.2-yard average per run 鈥?suddenly abandoned their ground game in favor of three-wide receiver sets that resulted in a quick three-and-out that sent Denver's exhausted defenders right back out."We ran the ball to control the game," Broncos coach Vance Joseph said, "but you throw the ball to score."After the three-and-out Seattle Seahawks Hats , struggling Broncos punter Marquette King shanked a 35-yarder out of bounds, giving the Chiefs the ball at their 40 with 4:35 left."He's got to perform better," Joseph said. "We're at home and it's his job to flip the field. It ain't happening."If anything, the Broncos' 1-2 punch of rookie running backs needed more work.Phillip Lindsay ran 16 times for 69 yards and a TD and Royce Freeman ran eight times for 67 yards and a TD.Freeman took a toss from Case Keenum and slipped seven tackles on his way to a 14-yard touchdown in which he dragged linebacker Anthony Hitchens across the goal line in the first half.BIG BLUNDERSMahomes overcame a couple of flags that put Kansas City in a second-and-30 hole from their 31 and completed consecutive passes covering 23 and 35 yard to reach the Broncos' 11 at the 2-minute warning.That last play never should have counted because the play clock expired well before the snap. But referee Craig Wrolstad's crew missed it. Joseph said he raised the issue with an official who insisted the Chiefs had gotten the play off in time."I disagree. I disagree," Joseph said.Cornerback Chris Harris Jr. said there should be some recourse when the officials blow a call."If a ref messes up on a call, yeah, you should be able to fix it. Go back and fix. Like, 'Dude, look how long the clock was on zero?' I mean, c'mon," Harris said. "That wasn't the reason we lost the game. We still had plenty of chances but that was a huge, huge no-call."The officials had another blunder when Mahomes was about 1陆 yards past the line of scrimmage when he scrambled and hit Kelce for a 29-yard catch to the 3 early in the second half. Joseph appeared to be reaching for his red challenge flag but never threw it.Denver's defense bailed out its coach by forcing the Chiefs to settle for a field goal.NATIONAL ANTHEMThomas and Broncos teammate Brandon Marshall both stood with their teammates during the national anthem. Since the preseason, both players had been retreating to the tunnel nearest their bench during the singing of "The Star-Spangled Banner."INJURIESChiefs: Wide receiver Sammy Watkins pulled a hamstring in the second quarter and didn't return. Linebacker Dee Ford (groin) left in the fourth quarter.Broncos: Right tackle Jared Veldheer left in the first quarter with a knee injury and was replaced by Billy Turner.UP NEXTChiefs: Host Jacksonville on Sunday to begin a stretch of three home games in four weeks.Broncos: Visit the Jets on Sunday, the first of three road games in four weeks. Sheldon Richardson's NFL career began smoothly with the New York Jets, until off-the-field trouble and locker-room conflict precipitated his eventual departure.Guided by some important gains in maturity, Richardson has found a niche two stops later in Minnesota. This weekend, when the Vikings visit the Jets, he'll have his first opportunity to vent any bad feelings with a winning performance against his old team for trading him.As outspoken as Richardson has been at times, this was not a subject he was willing to touch when reporters asked him about his return to MetLife Stadium to face the Jets on Sunday afternoon."Another game. I never put myself above the team," Richardson said. "Whatever personal vendetta I have is between me."As for the deal that sent him to Seattle for the final year of his rookie contract, right before the 2017 regular season?"It's a business," said Richardson Seattle Seahawks Hoodie , who played one season for the Seahawks, became a free agent and signed a one-year deal with the Vikings .Richardson played up to his first-round draft pick status by winning The Associated Press Defensive Rookie of the Year award in 2013. Then he had a career-high eight sacks and was picked for the Pro Bowl in 2014, the last season under coach Rex Ryan before Todd Bowles took over.Richardson served a four-game suspension in 2015, though, for violating the NFL's substance abuse policy. He also was suspended for the 2016 season opener for an arrest in his home state of Missouri for driving at high speeds and resisting arrest.Then there was his conflict with wide receiver Brandon Marshall and the public criticisms he expressed that contributed to some bad team chemistry."I did some things for me to get out of there for them to trade me," Richardson said, "and other than that I put it on myself, nobody else."Richardson continued his candid reflection before practice on Wednesday, acknowledging the character development he has undergone."It was kind of self-inflicted wounds," he said. "It's just now me overcoming my personal battles in life. They got me out of there, and that changed everything around there. That's pretty much it. I pretty much grew from everywhere. Every point, every phase of my life, I grew from it."Richardson had only one sack last year for the Seahawks, his first season in a primarily 4-3 scheme after playing in a 3-4 system with the Jets that saw him playing some at outside linebacker. With the Vikings, Richardson has settled in nicely at the three-technique position next to Linval Joseph.He has only one sack, but less-tangible contributions in pass pressure and run disruption are more important to making coach Mike Zimmer's system work. Richardson is tied for eighth in the NFL with 10 quarterback hits, and there's no coincidence that defensive end Danielle Hunter is thriving off his presence inside taking on frequent double-teams."I've been really impressed with Sheldon. Not just his play, but the way he's come in here and tried to learn the techniques we're trying to teach him," Zimmer said. "His professionalism, how he handles himself in the meetings, he's been really good with everything."