TORONTO -- Shawn Chacon gave New York's bullpen a much-needed rest.
Chacon pitched eight innings of four-hit ball a day after Randy Johnson's ejection forced New York to use five relievers, and the Yankees won their sixth straight with a 1-0 victory over the Toronto Blue Jays on Saturday.
"The pressure was totally on Chacon and he handled it really well," manager Joe Torre.
Bernie Williams drove in the lone run with an RBI single for the Yankees, who are a half-game behind Cleveland in the AL wild-card race and 1½ games back of first-place Boston in the AL East.
Chacon (5-3) struck out one and walked one. He tied a career high in innings pitched, done five times previously.
"I knew coming in it was either going to be one of those days where I struggled, and I was going to have to sit out there and eat up innings or I was going to pitch good," Chacon said.
"I threw strikes and was able to go late in the game. And the defense was outstanding."
Both Chacon and Torre said they had no idea if he would stay in the rotation. Mike Mussina is expected to return from the disabled list and start Thursday, which is Chacon's regular turn to pitch.
"I don't make the decision so I'm not thinking about it," said Chacon, who helped the Yankees record their AL-leading 13th shutout.
Third baseman Alex Rodriguez made a nice play on the one-hopper before firing to second baseman Robinson Cano, who relayed it to first baseman Tino Martinez, who scooped the ball out of the dirt for the final out.
"To me that was like hitting a walk-off grand slam," Rodriguez said. "That was fun. With Mo being out today that was a huge win for us."
Torre also didn't want to use Alan Embree and Tanyon Sturtze after Friday's victory, which Johnson was ejected from in the second inning for arguing with plate umpire Fieldin Culbreth. Johnson apologized Saturday and said he was wrong to let his emotions get the better of him.
"I knew Mariano had pitched the last couple of days, but I didn't know he had pitched three in a row so I wasn't thinking about it," Gordon said.
Chacin (12-9) allowed one run and eight hits in seven innings. The rookie left-hander has won just one of his last nine starts.
"Everybody's fighting, everybody's giving the best they can," said Chacin, whose team fell three games below .500 (72-75) for the first time this season. "But Chacon threw a great game. No luck."
Left-fielder Hideki Matsui robbed Reed Johnson of a hit with a diving catch in the eighth. Shortstop Derek Jeter made a couple of nice plays, throwing out Gregg Zaun after Zaun hit what looked to be a single up the middle in the third and making a nice over shoulder catch on Russ Adams' blooper in the sixth.
Left fielder Ruben Sierra also made a nice running catch on in fifth with two runners on.
"I didn't expect Ruben to get that close to that ball," Torre said.
Matsui singled in the sixth and attempted to score from first after Posada doubled off the wall in center, but the ball bounced right back to Wells, who threw it second baseman Aaron Hill, who easily nailed Matsui at home.
Jason Giambi hit a ball into the right-field corner in the fifth, but Johnson threw him out at second.
- Toronto general manager J.P. Ricciardi met with RF Alex Rios to tell him he won't tolerate lackadaisical play. Manager John Gibbons pulled Rios from Friday night's game for not running hard on a routine flyout in the first. "I know I should've run that ball out," Rios said. "It's not going to happen anymore."
- Torre said Saturday would have been a good game to play Mark Bellhorn at 2B with the a left-hander starting, but he didn't because 2B Cano has been on a tear lately.