Houston Astros (59-57, first in the AL West) vs. San Diego Padres (60-56, third in the NL West)San Diego; Friday, 9:40 p.m. EDTPITCHING PROBABLES: Astros: Ronel Blanco (0-1, 7.36 ERA, 1.29 WHIP, 16 strikeouts); Padres: Robbie Ray (10-6, 3.08 ERA, 1.29 WHIP, 107 strikeouts)LINE: Padres -124, Astros +104; over/under is 8 runsBOTTOM LINE: The San Diego Padres will try to keep a three-game home win streak alive when they take on the Houston Astros. San Diego has a 32-25 record in home games and a 60-56 record overall. The Padres have gone 38-17 in games when they record at least eight hits. The Astros have a 32-51 record in games when they have allowed a home run. Jeremy Pena is 13 for 45 with three doubles, a triple and four home runs over the last 10 games.