Source - Chiefs QB Patrick Mahomes has high ankle sprain 12:34 PM ET ESPN Kansas City Chiefs quarterback Patrick Mahomes suffered a high ankle sprain during Saturday's divisional-round victory over the Jacksonville Jaguars , a league source told ESPN's Adam Schefter. The nature of the injury to Mahomes' right ankle was confirmed Sunday by an MRI exam, which showed no other damage, a source told Schefter. Mahomes said Saturday night that he plans to play in next Sunday's AFC Championship Game. "It feels better than I thought it was going to be now," Mahomes said after the 27-20 victory that put the Chiefs in the conference title game for the fifth straight season. "Obviously, I have a lot of adrenaline going right now, so we'll see how it feels. But I'll hop right in the treatment and try to do whatever I can to be as close to 100% by next week. Luckily for us, we played the early game on Saturday, so we get an extra almost half a day that I can let that ankle rest." Editor's Picks Hobbled Mahomes leads Chiefs to AFC title game 13h Adam Teicher Mahomes injured the ankle late in the first quarter, when he went down awkwardly after completing a pass to reserve tight end Blake Bell . Though the quarterback was obviously favoring the ankle, Mahomes stayed in the game long enough to finish the drive, which ended with a field goal that gave the Chiefs a 10-7 lead. Mahomes initially resisted the Chiefs' requests that he retreat to the locker room to have the ankle X-rayed, though he eventually relented. X-rays of the ankle were negative. The Chiefs also had Mahomes do some agility drills. In Mahomes' absence in the second quarter, backup quarterback Chad Henne led the Chiefs on what proved to be a key drive. The Chiefs drove 98 yards for a touchdown, which came on Henne's 1-yard pass to Travis Kelce . Mahomes returned for the second half and went 22-of-30 for 195 yards and two touchdowns. He said the tender ankle affected his throwing on certain passes. ESPN's Adam Teicher contributed to this report.