(Seattle, WA)  --  The Mariners and Astros play the third game of their four-game series tonight at Safeco Field.  Mike Leake puts his 2-and-0 mark on the line for Seattle, while Houston counters with 1-and-0 Gerrit Cole.  The Mariners are second in the AL West at 9-and-6, three games behind the first-place Angels.