Vazquez went 10-5 with a 3.56 ERA in the first half of the season to earn a spot on the AL All-Star team, but has faltered since. The right-hander is 2-1 with a lofty 7.36 ERA over his last four starts.
The Puerto Rican right-hander, 12-3 with a 4.16 ERA, hopes to join Boston’s Curt Schilling (13-5) and Texas’ Kenny Rogers (13-4) among the AL’s 13-game winners. Oakland’s Mark Mulder leads the league with a 15-3 record.
Vazquez, 1-2 with a 5.84 ERA in six career starts against Toronto, has made two of his last three starts against the Blue Jays. He held them to to three runs in six innings of a 10-3 win on July 21, and then didn’t earn a decision after allowing three runs in 6 1-3 innings of the Yankees’ 6-5 win on July 26.
The Yankees, winners of four of five against Toronto this season, are hoping Vazquez can give follow up Kevin Brown’s stellar effort on Thursday.
Brown gave up just four hits in eight scoreless innings as New York beat Oakland 5-1. It was just the 10th time this season a Yankee pitcher threw eight innings, and the first in 19 starts since Jose Contreras beat Detroit on July 15.
New York starters entered with a 5.06 ERA, 24th among the 30 major league teams, and they averaged just 5.76 innings per start, 18th in the majors, according to the Elias Sports Bureau.
The Blue Jays have lost four of six overall and will be starting a seven-game road trip.
Toronto is coming off a 6-3 loss to the Cleveland Indians in 10 innings on Thursday.