So, about that popular belief the Tigers only draft pitchers with super-powerful arms and blazing fastballs …

Well, meet Jeff Thompson, their third-round pick this summer who said his fastball sits between 89 and 93. Impressive, sure, but not out of this world.

“I saw him throw a little harder than that,” said Scott Pleis, the Tigers’ director of amateur scouting. He probably sits 92, 93; there are times when he’ll sit 91 and go up and get 95 when he needs to.

“This guy can pitch.”

Thompson was the 2013 Big East pitcher of the year for Louisville, which advanced all the way to the College World Series in Omaha, Neb.

The extended season is why Thompson hasn’t yet signed with Detroit. A junior, he will be passing up his senior season, though; he flew to Lakeland on Monday and was expected to take his physical before putting pen to paper.

“I’m pretty excited,” Thompson said over the phone last week. “I’m getting kind of bored sitting around here. I’m ready to get back into it, get back into the groove of things.”

Thompson, 21, likely will head off to Single A Connecticut or West Michigan, where he’s expected to continue working as a starter — his role the past two years at Louisville.

A right-hander, Thompson throws from a three-quarters arm angle. And his real advantage is in his size — he’s 6-foot-6 and 245 pounds, bringing to mind his fair share of CC Sabathia comparisons, albeit he’s not a lefty.

“He throws downhill,” Pleis said. “The downhill plane that he has I think helps him miss some bats. Just because he’s maybe sitting 91, 92, I think he can still miss some bats.”

He sure did in college, with 229 strikeouts in 225 innings over three seasons. This year, Thompson struck out 113 in 107 innings. Opponents hit just .179 against him in 2013; his WHIP was 0.944.

After pitching in the renowned Cape Cod League over the summer, this was the breakout season for Thompson, who wasn’t even a first-team all-state honoree in high school. This was the first time he was selected in the draft; many college juniors already have been drafted multiple times.