Carlos Quentin, the All-Star outfielder who underwent arthroscopic surgery to remove loose bodies in his right knee March 19, will bat cleanup tonight in his first rehab assignment for the Tucson Padres.

Quentin, 29, will serve as the team's designated hitter in tonight's series opener against the Tacoma Rainiers. He will gradually start playing left field as the homestand continues.

"It’s going to go how my knee feels, how I feel getting back into game shape," Quentin told me today.

San Diego manager Bud Black told reporters Monday the rehab assignment would last at least seven days. Quentin said that sounded about right, depending on how his knee feels.

Other T-Pads notes for the night:

— Jeff Suppan, tonight's projected starter, flew to San Diego, where he will be asked to start Wednesday's game in place of a  Cory Luebke. The left-hander has a tight and sore pitching elbow.

Suppan, 37, will make his first big-league start since 2010.  

"It was a surprise, but I’m happy for him," manager Terry Kennedy said.

— In addition to adding Quentin to the roster, Tucson moved Mark Pope back to Lake Elsinore and announced the addition of Bear Bay. Bay pitched for Salt Lake last year, going 8-11 with a 5.19 ERA.

— Catcher Yasmani Grandal is "feeling better" since returning from the disabled list with a strained hamstring, Kennedy said. The manager said he ran well, and aggressively, against the Bees.

— Here are tonight's lineups for both 7-17 Tucson and 9-15 Tacoma: 

Tacoma Rainiers

1. Trayvon Robinson, CF

2. Carlos Triunfel, SS

3. Chih-Hsien Chiang,

4. Luis Antonio Jimenez, DH

5. Vinnie Catricala, 3B

6. Johan Limonta, LF

7. Guillermo Quiroz, C

8. Scott Savastano, 1B

9. Luis Rodriguez, 2B

P  Anthony Vasquez (3-1, 2.92 ERA)

Tucson Padres

1. Daniel Robertson, RF

2. Everth Cabrera, 3B

3. Yasmani Grandal, C

4. Carlos Quentin, DH

5. James Darnell, LF

6. Sawyer Carroll, CF

7. Vince Belnome, 1B

8. Beamer Weems, SS

9. Amadeo Zazueta, 2B

P Colt Hynes (0-2, 3.27 ERA)