
Haren has dominated the Padres (33-53) in four career games - three starts - posting a 1-0 record with a 1.17 ERA. He won his only start against them this year, yielding three hits in seven innings of a 9-0 victory on April 18.
The Padres, losers of 14 of their last 16 and owners of the worst record in baseball, were outscored by a combined 12-1 margin in losing their last two games at Colorado.
Cha Seung Baek (1-3, 5.46), who has lost his last two starts by allowing 10 runs and 16 hits with 12 strikeouts in 11 1-3 innings.