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Tyler O’Neill is serving as the designated hitter tonight and batting sixth, as the Orioles begin their three-game series in Toronto.

O’Neill was reinstated from the injured list earlier today.

Ryan Mountcastle is the first baseman, which puts Coby Mayo on the bench.

Dylan Beavers is in left field and Jeremiah Jackson is in right. Samuel Basallo is catching.

The Orioles’ five walk-off wins in the second half are tied with the Rangers and Mariners for most in the majors.

For the Orioles

Jackson Holliday 2B
Jeremiah Jackson RF
Gunnar Henderson SS
Ryan Mountcastle 1B
Dylan Beavers LF
Tyler O’Neill DH
Colton Cowser CF
Samuel Basallo C
Emmanuel Rivera 3B

Trevor Rogers LHP

For the Blue Jays

George Springer RF
Davis Schneider LF
Vladimir Guerrero Jr. DH
Alejandro Kirk C
Ernie Clement 3B
Ty France 1B
Isiah Kiner-Falefa 2B
Myles Straw CF
Andrés Giménez SS

Chris Bassitt RHP

Bo Bichette is on the 10-day injured list with a sprained left knee.

The Blue Jays have three players among the top seven in the majors in average: Bichette at .311, Guerrero at .301 and Springer at .297.

The Orioles have a career .297 average against Bassitt, highest in the American League and third in the majors.

Click here for details on Fan Appreciation Weekend on Sept. 19-21 at Camden Yards.