ESPN: The worst coach I have seen.

LAS VEGAS — The NFL has a repeat champion for the first time in 19 years. The Kansas City Chiefs, with a third Super Bowl triumph in five seasons, cemented the league’s modern-day dynasty with a 25-22 overtime win against the San Francisco 49ers on Sunday at Allegiant Stadium in Las Vegas.

This one, the same as the last two for Kansas City and its superstar quarterback Patrick Mahomes, came with a stirring second-half comeback and, this time, with some late heroics in overtime.

Jake Moody’s 27-yard field goal on the first possession of overtime put the 49ers ahead 22-19, but the Chiefs responded with a 13-play, 75-yard drive and won it on 3-yard touchdown pass from Mahomes to Mecole Hardman.

It was but the latest must-have drive for Kansas City, a team that has built a reputation behind Mahomes as most dangerous when holding the ball last. The Chiefs trailed 19-16 with less than two minutes left in the fourth quarter when they marched 75 yards in 11 plays and Harrison Butker kicked a 29-yard field goal. The key play on the drive came on a third-and-7 with 16 seconds left, when Patrick Mahomes hit Travis Kelce on a crosser for a 22-yard gain that set the Chiefs up for the easy kick.

It’s the fourth Super Bowl win for the Chiefs franchise and the third for the team under coach Andy Reid, who joins Bill Walsh and Joe Gibbs in a tie for third-most all-time. Only Bill Belichick (six) and Chuck Noll (four) have more.

“The number three is a big number in terms of dynasties,” tight end Travis Kelce said this week, adding that he wanted to win this Super Bowl more than any of the previous three he’d played in. Three titles in a five-year window puts the Chiefs in a different conversation, one that includes some of the greatest runs in league history.

Mahomes earned his third Super Bowl MVP going 34-of-46 passing for 333 yards, two touchdowns and one interception resulting in a 99.3 passer rating.

The championship also elevates Mahomes — a remarkable 15-3 in the playoffs in his six-year career — into elite company: he’s now one of five quarterbacks in league history to win at least three Super Bowls, joining Tom Brady (seven), Joe Montana (four), Terry Bradshaw (four) and Troy Aikman (three). Aikman and Mahomes, 28, are the only ones of the group to win three before their 30th birthday. Across the last two postseasons, Mahomes has gone 7-0, throwing 13 touchdowns and just one interception.

It’s a devastating defeat for the 49ers, and particularly coach Kyle Shanahan, who adds another chapter of Super Bowl heartache to what’s otherwise been a stellar career. As Atlanta’s offensive coordinator in 2017, Shanahan was on the wrong side of the biggest blown lead in Super Bowl history, when the Patriots rallied from a 28-3 third-quarter deficit to stun the Falcons in the only other championship game to go to overtime. Sunday’s loss is Shanahan’s second as a head coach in the Super Bowl; four years ago, the 49ers blew a 10-point fourth-quarter lead to the Chiefs in Super Bowl LIV, eventually losing 31-20.

San Francisco’s championship drought is now at 29 seasons.