San Diego Padres probable pitchers and starting lineup vs. Arizona Diamondbacks, April 21

Coming off a 7-5 win on Thursday in the series opener, the San Diego Padres will look to keep the momentum going at Chase Field against the Arizona Diamondbacks.

Thursday's victory wasn't just highlighted by the return of Fernando Tatis Jr. to the starting lineup, but also the power of Xander Bogaerts and Matt Carpenter, a player we worried about his role with the team before the start of the series. However, thanks to long balls from Bogaerts and Carpenter plus the timely hitting of Trent Grisham on Thursday, the Padres were able to secure their second win in three tries against the Diamondbacks this season.

San Diego Padres starting lineup vs. Arizona Diamondbacks

When the starting lineup is unveiled by manager Bob Melvin prior to the game, we will include it below.

Who are the starting pitchers for the San Diego Padres and Arizona Diamondbacks on Friday?

For San Diego, Seth Lugo (2-0, 2.70 ERA) is expected to take the mound on Friday, and he will be opposed by Arizona's Zac Gallen (2-1, 3.33 ERA) in a battle of right-handers. Gallen faced the Padres on April 4 in San Diego and went 6.0 innings, allowing seven hits and five runs (four earned). He surrendered a pair of homers in that outing, with Bogaerts and Nelson Cruz both taking him deep.

Which San Diego Padres players needs to bounce back against the Arizona Diamondbacks on Friday?

Padres fans are still looking for Juan Soto to get on a hot streak. After his solo homer on Wednesday that was the difference-maker in a 1-0 victory over Atlanta, Soto went 0-for-4 on Thursday in the desert. Over his last seven games, he's 3-for-21. Soto is 3-for-10 lifetime against Gallen with a home run, so we will keep an eye on that matchup on Friday.

How do I watch the San Diego Padres-Arizona Diamondbacks game on Friday?

Friday's game between the Padres and Diamondbacks is slated to begin at 6:40 p.m. (Pacific time) and is the second in a four-game series in Phoenix. The game will be broadcast on both Bally Sports San Diego and Bally Sports Arizona, as well as through MLB.tv (blackout restrictions may apply).