Komine, who left with the Athletics leading 2-1, missed getting a decision when the Blue Jays rallied for three runs in the ninth for a 5-3 lead. But Milton Bradley hit a three-run homer in the bottom of the ninth with two outs to give Oakland a 6-5 victory.

Komine allowed four hits, struck out one and walked four in a duel with Toronto ace Roy Halladay.

In the first inning, Toronto leadoff hitter Reed Johnson, on a 0-1 count, hit a home run to left. After consecutive ground outs, Troy Glaus singled to center and Lyle Overbay walked. But Komine got Greg Zaun to ground out to second to end the inning.

Komine got the ball from his first pitch as a souvenir moments before allowing Johnson's seventh homer.

"I think it just settled me down," he said of the homer. "I got it out of the way and made some good pitches after that. ... You've just got to laugh at it and move on. It happens."

The rookie had about 50 family members and friends in the stands to support him, with some flying in from his native Hawaii for the game. His parents, younger brother, and fiancee attended after learning Wednesday that Komine would pitch for Oakland.

The Athletics tied the game in the second inning on a fielder's choice by Bobby Kielty.

Komine earned his first Major League strikeout when he got Overbay swinging on a 3-2 count to end the third inning.

The Athletics added another run on a Bradley's fielder's choice in the third inning.

Komine set down the side in the fourth and fifth innings and eight Blue Jays in a row before Troy Glaus walked with one out in the sixth inning. Overbay singled to right, moving Glaus to second, and Zaun walked to load the bases. But Komine got out of the jam, getting Alex Rios to line out to second and Aaron Hill to third to end the inning.

Komine was replaced by reliever Chad Gaudin, a right-hander, at the start of the seventh inning. Of Komine's 99 pitches, 53 were strikes. He faced 26 batters and got nine groundouts and eight flyouts.

Halladay, the 2003 American League Cy Young winner, entered the game 13-2 with a 3.07 earned-run average. He left in the bottom of the seventh on Sunday after giving up an RBI single to Kielty that gave the Athletics a 3-1 lead. Halladay gave up three runs and eight hits, struck out three and walked one.

The Blue Jays closed to 3-2 on Eric Hinske's RBI single in the eighth.

Toronto's three-run ninth was highlighted by a two-run double by Overbay.

Komine, a 1998 Kalani High graduate, was called up this week from Triple-A Sacramento of the Pacific Coast League. The right-hander was 9-7 with a 3.89 earned run average.

The 25-year-old Komine was drafted by the Athletics in the 19th round in 2002 after an All-American career at Nebraska (named three times to the Baseball America second team) and has spent the past 4 1/2 seasons in the A's minor-league system.

Oakland entered today's game leading the AL West, a half-game ahead of the Los Angeles Angels of Anaheim.