Pittsburgh ? Xavier Nady hit a three-run homer to help Pittsburgh open a seven-run lead in the only non-interleague series of the weekend, and the Pirates withstood a shaky start from Ian Snell to beat the Arizona Diamondbacks, 11-5, Friday night.

Adam LaRoche, one of baseball’s best hitters this month after being one of its worst in April, had two hits, scored twice and drove in two runs as the Pirates halted a five-game losing streak against Arizona.

Nady’s homer, his fifth, came in the third after Freddy Sanchez and Jason Bay singled, and made it 3-0. The Pirates added four more runs after Doug Davis (2-5) walked the first two batters of the fifth, threw a wild pitch and then allowed four consecutive singles – LaRoche’s drove in two runs – before being lifted.