After that tremendous homestand in which the Bucs blanked the Cards three in a row and outscored the Redbirds and Mets a combined 43-4 while winning six straight, the Pirates turned into the Pirates again on Friday when they went back on the road and were blanked 6-0 in Seattle. Mike Burrows is on the mound for Pittsburgh on Saturday, and while his recent efforts have encouraged, his absolute max seems five innings, likely meaning lots of bullpen work on Saturday. The Bucs' offense is also liable to go into a funk at a moment's notice, and Mariners starter Luis Castillo is off of one of his better efforts, allowing just one run across 6 IP vs. the Rangers last Sunday in Seattle's 6-4 win (12 innings). Play Mariners on Run Line