Orioles on deck: Tim Beckham will start at 3B, plus what to watch Monday vs. Mariners

Orioles (23-53) vs. Mariners (47-31)

Where: Camden Yards

First pitch: 7:05 p.m.

TV/Radio: MASN/105.7 The Fan

Starting pitchers: Orioles RHP Andrew Cashner (2-8, 4.72 ERA) vs.Mariners RHP Félix Hernández (6-6, 5.14 ERA)

Beckham returns to Orioles, is starting at third base

Tim Beckham, who has been on he disabled list after two months out for core muscle surgery, was activated by the Orioles Monday and will bat eighth and play third base.

What to watch

1. Back home. The Orioles return home from a 3-3 road trip having won four of seven games overall. They’ll be taking on a Mariners team that has lost six of seven games to slip 4½ games behind the Houston Astros in the American League West.

2. Cashner. Andrew Cashner was well on his way to his third straight quality start when a lengthy rain delay ended his most recent start, June 20 at the Washington Nationals. Cashner tossed four scoreless innings that day and has a 3.38 ERA over his past three starts.

3. Promising effort. Trey Mancini might be having an awful month, batting .203 in June. But he went 2-for-2 with a home run and a walk Sunday for his first multihit performance since June 10 and his third home run in 11 games.