The Rays reinstated closer Troy Percival from the disabled list this morning. Percival takes the roster spot of Gary Glover, who is going on the 15-day disabled list with a left calf strain, retroactive to July 11.

Percival said he’s not offering any absolute guarantees, but he feels “10 times better” than the last time he came off the DL after a hamstring problem earlier this year. The Rays’ medical staff figured out that a nerve problem in Percival’s back was actually causing most of his hamstring issues and they have begun to treat his back rather than his leg.

He’s obviously anxious to get back and reassume ninth-inning duties, though it should be noted the Rays didn’t blow a save in his absence.

As for Glover, he said his calf stiffened up on him in his dreadful outing in Cleveland before the break, when he allowed six hits and seven runs in two-thirds of an inning, and hasn’t improved since then.

“I tried to throw off the mound the last couple days and it’s still just real tender on landing and I wasn’t going to be able to go, I don’t think, with 100 percent,” he said. “I felt I might jeopardize something [in my arm] by compensating and not landing properly. I didn’t want to take a chance at that and the trainers didn’t want to take a chance at that, either.”

The timing certainly is fortuitous, but Glover seemed sincere in saying he isn’t able to pitch right now.

Here are the lineups for today’s titanic struggle, featuring Evan Longoria at DH as Joe Maddon tries to give his beat-up left ankle a break:

Jays
Inglett RF
Scutaro 2B
Rios CF
Stairs DH
Overbay 1B
Rolen 3B
Lind LF
Zaun C
McDonald SS
Parrish P

Rays
Iwamura 2B
Upton CF
Crawford LF
Longoria DH
Pena 1B
Aybar 3B
Riggans C
Gomes RF
Zobrist SS
Jackson P