TORONTO -- Nick Markakis was not in Baltimore's lineup for Wednesday's series finale against Toronto because of a sore right wrist.

He tweaked the wrist in his final at-bat of Tuesday's 8-6 loss to the Blue Jays.

"[It happened on a] swing, I don't know anything else," Markakis said. "I just swung, and it didn't feel good. It's not like I took an awkward swing or anything. I just swung and it didn't feel right."

Markakis will travel with the Orioles to St. Petersburg, where they will start a three-game set against the Rays on Friday, and have some tests performed on the wrist. He will undergo an MRI on Thursday morning and see a doctor in the afternoon.

The 28-year-old is among the more durable players in the sport, having played in at least 160 games in each of the past three seasons, but he had no intentions of playing on Wednesday after the pain intensified.

"I woke up this morning and knew I had no chance," Markakis said. "It was just swollen and didn't feel right. I couldn't pick up a bat or anything."

Markakis also hurt the wrist on a slide a little more than a week ago, but the pain went away, and he didn't tell anyone about it.

Markakis, who considers himself day to day, is batting .256 with eight homers, 26 RBIs and a .785 OPS.

Wieters weathering an offensive slump

TORONTO -- Matt Wieters has been going through a rough stretch after beginning the season on a tear.

Entering Wednesday's contest against the Blue Jays, Wieters was hitting .196/.292/.337, with two homers and seven RBIs in May after batting .279/.364/.574 in April with six home runs and 15 RBIs.

The funk has only gotten worse recently. Over his last 11 games, he is 3-for-36, but manager Buck Showalter is not concerned.

"Some of it's the wear and tear of catching," Showalter said. "Like all hitters, you are going to have ups and downs in the year. You try to minimize them as much as you can. Matt will start swinging the bat well again, and I thought he has had some good at-bats the last couple of games.

"With a guy like Matt, you figure if he's struggling statistically, someone is going to pay for that down the road. He is going to make somebody pay. I trust him."

Wieters was ejected for the first time in his career in the fifth inning of Tuesday's loss to the Blue Jays for arguing balls and strikes.