The Marlins scored five times in the top of the first inning in last night's win at PETCO, and they may get off to another fast start here in the series finale Wednesday afternoon. The Padres turn to a struggling pitcher, and their defense hasn't done them any favors either. San Diego's fielding percentage of .981 ranks 28th in the major leagues.

Here are my keys to the game:

1. Pitching - With Tyson Ross on the DL and James Shields traded to Chicago, 23 year old right-hander Luis Perdomo is getting a shot in the rotation. So far it's been nothing short of a disaster, as he's conceded 10 runs on 18 hits over 10 innings in two starts since coming out of the bullpen. He wasn't exactly effective as a reliever either, posting an ERA of 10.17 in nine appearances in the month of April.

2. San Diego's Bullpen - The Padres relief pitchers have posted an ERA of 4.68 so far this season. The only two teams that rank worse are Cincinnati and Texas, and at least they have the excuse of pitching in a hitter's park.

3. X-Factor - The Marlins have gone over the total in seven of their last 10 on the road, and the OVER is 6-2 in Nicolino's last 8 starts overall.

Selection: This is a play on the Marlins@Padres to go OVER the total (1st 5 innings).