INDIANAPOLIS — If there were any doubts about Saquon Barkley’s freakish athletic ability, he dispelled them Friday.

The Penn State running back, who is projected to be one of the first players selected in next month’s draft, put on a show at the NFL Scouting Combine.

The 233-pound star showed he has the strength of a top lineman and the speed of a top receiver. Teams picking in the top five, such as the Giants, will have to be certain before passing on someone as gifted as Barkley.

NFL Research tweeted out how Barkley compares with some notable NFL stars, and it is jaw-dropping.

On Thursday, Barkley bench-pressed 225 pounds 29 times, tied for the most by any running back here. Browns tackle Joe Thomas, a 10-time Pro Bowler, only benched it 28 times at the 2007 combine.

Then on Friday, Barkley’s 10-yard split was a blazing 1.54 seconds. That was one hundredth of a second better than Buccaneers wide receiver DeSean Jackson’s 1.55 in 2008.

In the 40-yard dash, Barkley recorded a time of 4.40 seconds, the second-best time among the running backs. Devin Hester, known as one of the fastest kick returners in NFL history, had a time of 4.43 in 2006.

Finally, Barkley’s vertical jump came in at 41 inches, the best at the combine so far. Falcons wide receiver Julio Jones had a vertical of 38 ½ inches in 2011.

The performance only confirms what many people believe about Barkley: He is one of the most talented prospects in years. On Thursday, he spoke about possibly being the No. 2 pick and joining the Giants.

“You look at that team — last year, they were in a lot of games, too, and they had a lot of injuries,’’ Barkley said. “But you’ve got guys like Odell [Beckham Jr.], that tight end [Evan Engram], Sterling Shepard, a quarterback [Eli Manning] that’s established and proven himself, got two Super Bowl rings. If I was fortunate to go to a team like that, and have the success I had in college football, I think that would be another good fit.’’

At Penn State, Barkley rushed for close to 4,000 yards in three seasons, scored 51 touchdowns from scrimmage and added another one passing and two on kickoff returns.

There are some who believe the Browns should select him with the first pick (they also own the No. 4 pick) instead of one of the quarterbacks.

“I am a competitor,’’ Barkley said. “I love competing. But where my mindset is at, I don’t care if I’m drafted one, five, 72 or the last pick. I’m gonna come in with my head low ready to work. That’s not going to change me. That’s why, whatever team drafts me, you’re gonna get the same person. You’re going to get the guy who’s going to be a competitor, a guy who’s passionate about the game. Even though I’m a rookie, I’m going to try to be a leader to the best of my ability and just continue to work.’’