The Twins walked away with a 7-6 come from behind win over the Seattle Mariners at the Metrodome Saturday night.  Brian Buscher's sacrifice fly in the bottom of the 9th inning scored Joe Mauer from 3rd base to win the game.  Mauer led the Twins at the plate going 3-4 with 3 runs scored, a homerun and 2 RBIs and both Justin Morneau and Delmon Young were 2-4 with 1 RBI.  Dennys Reyes threw 1 inning of scoreless relief to get the win and improve to 3-0 this season.  Scott Baker started the game and threw the first 5 1/3 innings with 8 hits and 4 earned runs allowed.  The Twins are 69-53 and remain in a first place tie with the White Sox in the American League Central.  Chicago won 2-1 at Oakland yesterday.  The Twins go for the sweep of the Mariners this afternoon at 1:10, pregame on WJON at 12:40.   Lefthander Glen Perkins (9-3) gets the start on the mound for the Twins and lefthander Ryan Feierabend (0-0) toes the rubber for the Mariners.