Programming note: Giants-Braves coverage starts today at 3:30 p.m. with Giants Pregame Live on CSN Bay Area.
The Giants purchased Kelby Tomlinson's contract and placed Joe Panik on the 15-day DL on Monday.
The 25-year old delivered a pinch-hit single in the 12th inning on Monday night and scored what would have been the game-winning run had Adonis Garcia not hit a two-run, walk-off homer.
Tomlinson, whom the Giants selected in the 12th round of the 2011 draft, will make his first career big-league start tonight.
He will hit eighth and play second base.
Ehire Adrianza is at shortstop as Brandon Crawford is out of the lineup for the first time since July 6.
1. Nori Aoki (L) LF
2. Gregor Blanco (L) CF
3. Matt Duffy (R) 3B
4. Buster Posey (R) C
5. Hunter Pence (R) RF
6. Brandon Belt (L) 1B
7. Ehire Adrianza (S) SS
8. Kelby Tomlinson (R) 2B
9. Madison Bumgarner (R) P (11-6, 3.39 ERA)
1. Nick Markakis (L) RF
2. Eury Perez (R) CF
3. Jonny Gomes (R) LF
4. Chris Johnson (R) 1B
5. Adonis Garcia (R) 3B
6. Jace Peterson (L) 2B
7. Ryan Lavarnway (R) C
8. Daniel Castro (R) SS
9. Williams Perez (R) P (4-1, 4.14 ERA)