BALTIMORE -- A pitching duel between A.J. Burnett and Jeremy Guthrie ended without a clear winner.
Play will resume Thursday afternoon with two outs in the top of the sixth. After the outcome is decided, the teams will take a 20-minute break before playing the finale of the four-game series.
Toronto went up 2-1 moments before a thundershower stopped play. Alex Rios led off with a single, stole second and scored on a single by Lyle Overbay. Guthrie then got two outs before the rain intensified, and play was called with Overbay on third and Scott Rolen batting with a 1-0 count.
"Rain wasn't a factor," Guthrie said. "Line drives were a factor."
After a delay of more than 1 ½ hours, the game was suspended.
"It had the makings of a quality baseball game," Orioles manager Dave Trembley said. "And then the rain came."
Burnett allowed one run and six hits in five innings for Toronto. He struck out seven and walked none.
"When you don't have results, I guess you could think of it as wasted," Blue Jays manager Cito Gaston said of Burnett's performance. "But, hey, he kept us in the game again. ... We'll start over tomorrow in the sixth inning, go from there and hopefully get a win."
The Orioles wasted a solid start by Guthrie, who gave up six hits in his bid to remain unbeaten since June 12. But at least they don't have to face Burnett.
"Now we get someone else, not him," said Adam Jones, who struck out and grounded out. "Hopefully, we'll have better luck."
Both teams wore 1983 throwback uniforms to coincide with a pregame ceremony to celebrate the 25th anniversary of Baltimore's last World Series champion. The Blue Jays pulled out their vintage powder blue uniforms, and several of the Orioles hiked their pants up to the knees to expose retro style orange stirrups.
Toronto broke on top in the third when Adam Lind singled, stole second, took third on a single by John McDonald and scored on a groundout by Marco Scutaro.
After stranding a runner at second base in the first and second innings, Baltimore pulled even in the fourth. Aubrey Huff tripled to left-center and scored on an infield hit by Melvin Mora.
Burnett gave up a double to Brian Roberts in the fifth but struck out the side.
After the game, the Blue Jays recalled LHP David Purcey from Triple-A Syracuse and optioned RHP Jesse Litsch to the same club. Purcey, 8-6 with a 2.69 ERA in 19 starts with Syracuse, will take Litsch's spot in rotation. "We're going to give him a good look. There's nothing wrong with having a left-handed starter up here this year or next year or whatever," Gaston said of Purcey, who has not yet pitched in the majors. ... The Orioles will send LHP Jamie Walker (elbow) to Double-A Bowie for a rehabilitation assignment Thursday. ... Former Orioles in attendance for the pregame ceremony included Hall of Famers Eddie Murray, Cal Ripken Jr. and Jim Palmer. ... Huff came in 5-for-43 (.116) lifetime against Burnett, then went 2-for-2 against the right-hander.