MONTREAL (AP) _ Turner Ward and Kevin Young hit consecutive homers and Jon Lieber retired 19 straight batters at one stretch Saturday night, leading the Pittsburgh Pirates past the Montreal Expos 5-2.

Lieber (7-10) pitched a five-hitter for his second complete game of the season. He gave up four hits in the first inning, but Montreal managed only Shane Andrews' leadoff single in the eighth after that.

Lieber struck out four and walked none in the fourth complete game of his career. He matched his career-best for fewest hits allowed.

Ward, who added a double, and Jason Kendall each had three hits for the Pirates.

Shawn Boskie (1-3) did not get out of the first inning. He gave up four runs, allowing hits to six of the seven batters he faced.

Tony Womack singled leading off the game to extend his hitting streak to 12 games, but was later down trying to advance to third on Boskie's errant pickoff throw.

Kendall followed with a double and Ward homered. Young hit his 20th home run on the next pitch for a 3-0 lead, and Mark Smith singled. After a groundout, Aramis Ramirez hit an RBI single that finished Boskie.

Boskie _ who hasn't lasted more than four innings in each of his last four starts _ lost his third straight decision since winning his Expos debut on June 19.

The Expos came back in the bottom half on two-out, RBI singles by Brad Fullmer and Mark Grudzielanek.

Ramirez had a sacrifice fly off reliever Mike Maddux in the eighth. Notes: Expos center fielder Rondell White caught five fly balls during reliever Shayne Bennett's 3 1-3 innings. He caught three in a row in the fourth. ... Womack is one short of his career-best hitting streak of 13 games set last season. ... Ward and Young's homers marked the third time Pirates batters have homered in consecutive at-bats this season. Jose Guillen and Freddy Garcia did it on April 7 at New York and Manny Martinez and Kendall did it on May 16 at Arizona.