(SportsNetwork.com) - The Baltimore Orioles will try to continue to close the gap on the first-place Toronto Blue Jays on Sunday afternoon as the squads conclude a four-game series at Camden Yards.

J.A. Happ will get the nod for the Blue Jays as he attempts to improve upon a 5-3 record and a 4.37 ERA.

Happ was ineffective his past time out, lasting only 3 2/3 innings while surrendering six hits, three walks and four runs (three earned) in a June 10 loss to the Twins.

The 31-year-old southpaw has managed to go 3-0 on the road this season, but in those 18 innings he has just 11 strikeouts paired with 11 walks.

Baltimore will answer with Chris Tillman, who despite a solid 5-3 record has been disappointing with a 4.91 ERA and a 1.52 WHIP.

Tillman had one of his most productive starts of the season on June 10, allowing just one earned run over six innings of work against Boston, but he was the hard-luck loser as the Orioles fell, 1-0.

The sixth-year veteran faced Toronto on April 23, and despite surrendering nine hits (including three home runs) and seven earned runs in 5 2/3 innings he was still able to earn the win.

After the teams split the first two games of the series, Baltimore took control on Saturday with a 3-2 victory.

With the score tied a 1-1 in the bottom of the fifth inning, the Orioles went on top thanks to a two-run homer off the bat of Chris Davis, his 11th of the season.

"There's no change in my approach (compared to last season)," Davis said. "I've been doing everything I can to try to get back to feeling good in the box. I felt the last couple of days I've started to click a little bit."

The Blue Jays cut their deficit to just one in the eighth on a Brett Lawrie RBI single, but after Jose Reyes worked a one-out walk in the ninth, the game ended when Melky Cabrera grounded into a double play.

Bud Norris (6-5) allowed just one earned run over 6 2/3 innings while striking out five in the victory.

Zach Britton closed the door in the ninth for his seventh save, lowering his ERA to a microscopic 0.76 in the process.

Manny Machado went 2-for-4 for his second straight multi-hit game.

R.A. Dickey (6-5) pitched well in the loss, yielding just six hits and two earned runs in 6 2/3 innings.

Lawrie, Reyes and Edwin Encarnacion all collected two hits apiece for Toronto.