According to the 13th-year starter, Super Bowl LIV will feature two of the best.

On the Kansas City Chiefs’ side, defensive end Frank Clark combines an impressive burst of speed with a motor that doesn’t stop.

“I’m very familiar with Frank from his time in Seattle,” Staley said. “He’s a heck of a player, a guy that plays with relentless effort the entire time. So he’s a huge challenge.”

Clark spent the first four years of his career in Seattle where he racked up 36 sacks, including 3.5 in eight games against San Francisco. Clark has shared intense battles at the line of scrimmage with Staley on a frequent basis over the last few years, but Staley said they have a healthy respect for one another.

“I don’t really talk trash and guys don’t really talk trash to me. It’s just a battle,” Staley said. “We have mutual respect for one another.”

Staley and right tackle Mike McGlinchey’s ability to neutralize Clark and keep quarterback Jimmy Garoppolo upright in the pocket will play a huge role in the 49ers’ offensive success next Sunday, but Staley insists Kansas City’s offensive line won’t have an easy day, either.

From the moment Defensive Rookie of the Year Nick Bosa arrived on the practice field, Staley knew the 49ers’ first-round draft pick was destined to be a star.

“He’s been unbelievable from day one,” Staley said. “He’s so physically gifted where it’s just his pure athleticism that he has, the power that he plays with, an understanding of how tackles are going to attack.”

Staley has talked at length this season about the impression Bosa made on him during training camp and has indicated he hasn’t spent much time offering the Ohio State product tips about attacking offensive tackles. Instead, Staley said he devoted more time to wondering how Bosa made the game look so easy.

“It was more like, ‘Hey, why are you beating me so bad,’ ” Staley said.

Staley said he and Bosa still discuss matchups during games, but noted that any time he has a tip for the rookie, Bosa is usually on the same page.

Bosa and former Kansas City Chiefs defensive end Dee Ford, who was replaced by Clark following offseason trades, have been an unstoppable force in their time together on the field this season. The 49ers’ pass-rush has wreaked havoc on its opponents and will face one of its most difficult challenges when it meets Chiefs star quarterback Patrick Mahomes.

Outside of being able to draw on advice from one of the game’s premier tackles, Bosa has another brilliant resource in his brother, Joey, the Chargers’ pass-rusher who faces the Chiefs twice a year.

“We’re going to be talking,” Nick said Thursday. “He has pretty good input on these guys so he’s going to give me everything he can give me and it’s up to me to go use it.”

Containing Mahomes and Kansas City has been an issue for Joey, though, as he didn’t record a sack in either game against the Chiefs this season and only has two in six career games (five losses) against his AFC West foes.

If the 49ers are going to beat the Chiefs and secure the sixth Super Bowl title in franchise history, stopping Clark and freeing up Bosa should be two of San Francisco’s biggest keys.