PHOENIX (AP) — Collin McHugh earned his 19th victory, Colby Rasmus homered twice and the Houston Astros beat the Arizona Diamondbacks 6-2 on Saturday night to clinch at least a tie for the American League's second wild card.The Astros remained in contention for the AL West title as well as the league's first wild card.McHugh (19-7), pitching a night after teammate Dallas Keuchel won his 20th game, allowed a run and six hits in seven innings to improve to 6-0 in his last seven starts.