The left-hander was locked in a pitcher's duel with San Francisco Giants right-hander Matt Cain. Wilson made one mistake in the bottom of the fifth inning, a high fastball that Edgar Renteria cranked over the left-field wall for a 1-0 lead.
It stayed that way into the seventh when Wilson gave up a lead-off walk. Rangers pitching coach Mike Maddux trotted out to the mound in what seemed to be a routine visit to talk things over as the game progressed into the late innings.
Upon reaching the mound, Maddux immediately motioned to the dugout that something was wrong, and Wilson wasted little time walking off the mound in obvious disgust. Relief pitcher Darren Oliver came in and surrendered a one-out RBI single to Juan Uribe for a 2-0 lead.
"My finger ripped open," Wilson said. "Usually it's not as bad, but I've been super-gluing it the last couple of weeks to keep it together and it just kind of ruptured in that at-bat with Cody Ross. I couldn't throw anything beside the curveball for a strike so that's why I threw him like seven [curveballs]."
Both Giants runs were charged to Wilson, whose near-gem was over after six innings and one batter. He gave up the two runs on four hits.
The Rangers' bullpen then collapsed in the eight inning, allowing seven runs as the Giants went on to a 9-0 victory and a 2-0 World Series lead.
Cain exited with two outs in the eighth, clinging to the 2-0 lead.
Wilson complained about a blister after his last outing, a rough start in Game 5 of the ALCS at Yankee Stadium. He struggled through five innings, giving up five runs on six hits in the eventual 7-2 loss.
"If it would have happened between innings [Thursday], then maybe I could have super-glued it, but they're not going to let you super-glue your finger because maybe that's a performance-enhancer or some crap like that," he said.
Wilson entered his first career World Series game looking to get the Rangers even after the Giants tagged Texas ace Cliff Lee in Game 1.