TORONTO, SEPT. 5 -- Mike Flanagan allowed four hits over 7 2/3 innings in his Blue Jays debut today, helping Toronto to a 3-0 victory over the Seattle Mariners. It was Toronto's fourth straight victory.

Flanagan (4-6), acquired from Baltimore on Aug. 31, struck out a season-high eight and walked one. The left-hander retired 14 consecutive Mariners between Phil Bradley's first-inning double and Rey Quinones' fifth-inning single. Tom Henke pitched the final 1 1/3 innings for his American League-leading 31st save. Mike Campbell (0-3) took the loss.

Flanagan, 35, was making the 345th appearance of his 11-year career, but the first for any team other than Baltimore.

Since concluding a three-month stay on the disabled list July 18, Flanagan has won four of five decisions.

"I'm in a good groove," said Flanagan, who got his 140th career victory. "The velocity on the radar is as good as it was in '79 {when he won a Cy Young Award}. Coming to a first-place club, or a club knocking on the door, for me is perfect timing. The scenario, the script, is just perfect.

"I felt like the last years I've had some bad breaks," said Flanagan. "There was never a doubt in my mind, only in other people's minds."

Flanagan impressed Henke.

"He can pitch. He proved it today, and we can score some runs for him so he's going to win a lot of games, this year and next year," said Henke, who had wasted the previous two save opportunities after recording 17 straight saves. "He had a great curveball, sneaky quick fastball and he mixed up his pitches."

"He really surprised me with the velocity on his fastball," Toronto catcher Ernie Whitt said of Flanagan. "To me, he's throwing the ball better than he has in three years."

Seattle catcher Dave Valle, who was hitless against Flanagan, concurred with Whitt's assessment. "He threw harder than I've seen him in the past," he said. "He's got a lot of experience and he knows how to pitch."

Flanagan got 67 of his 105 pitches in for strikes. "He did a job on us," said Seattle Manager Dick Williams. "Usually, players going to a club this late in the year, they know if they are a winner or loser. Flanagan knows he's a winner. It was a great acquisition. He has proven that."

Toronto opened a 1-0 lead in the first inning. With one out, Lloyd Moseby doubled and Tony Fernandez followed with an RBI single.

The Blue Jays made it 2-0 in the third as Nelson Liriano walked, stole second, advanced on Moseby's flyout and scored on Fernandez's sacrifice fly.

Since being switched to the No. 3 spot in the batting order from leadoff, Fernandez has 17 hits in 37 at-bats and seven RBI. "I'm not a pull hitter," said Fernandez. "I'm still thinking like a leadoff hitter. I don't see the change. I think they are pitching me the same way. I just am trying to get more concentration. If you don't concentrate on what you are doing, you are dead."

Toronto made it 3-0 in the fourth. Campbell issued one-out walks to Fred McGriff and Jesse Barfield, and Willie Upshaw, who ended a zero-for-17 slump Friday night, followed with an RBI double into the right field corner.