Corey Hart 1B/RF.. SEA 4 Months

Corey Hart (hamstring) ran the bases Monday.

Hart began baseball activities over the weekend and is expected to start a rehab assignment later this week. He's been on the shelf since mid-May with a left hamstring strain but is on track to return to action before the end of the month.

Corey Hart 1B/RF.. SEA 4 Months

Corey Hart (hamstring) will take batting practice for the first time on Friday since straining his hamstring on May 19.

He'll progress to doing some light running on the field on Saturday, as he continues to work his way back towards a return to the Mariners lineup. If all goes well, he could be cleared for a minor league rehab assignment in a week or so, and be looking at a return to the lineup in late-June.

Corey Hart 1B/RF.. SEA 4 Months

Corey Hart (hamstring) was given a platlet-rich plasma (PRP) injection on Monday.

Hart won't be allowed to begin activities for another week. He's expected to be out until at least mid-June with a Grade 2 left hamstring strain.

Corey Hart 1B/RF.. SEA 4 Months

Corey Hart (hamstring) is expected to miss 4-6 weeks.

Hart suffered a Grade 2 left hamstring strain on Sunday and was placed on the 15-day disabled list Tuesday afternoon. The veteran outfielder was batting just .209 with a .647 OPS this season for the Mariners, but he did have five home runs and 17 RBI in 37 games. That power will be dearly missed in the Seattle lineup.

Corey Hart 1B/RF.. SEA 4 Months

Mariners placed OF/DH Corey Hart on the 15-day disabled list, retroactive to May 19, with a left hamstring strain.

The Mariners have called up Nick Franklin in a corresponding roster move. Hart is dealing with a Grade 2 strain of his left hamstring and might not be ready when he's first eligible.

Corey Hart 1B/RF.. SEA 5 Months

Corey Hart has been diagnosed with a strained left hamstring and will be re-evaluated on Monday.

Hart injured the hamstring while stealing second base during Sunday's game. The Mariners don't play again until Tuesday night, so any potential roster move involving Hart might not happen for a while.

Corey Hart 1B/RF.. SEA 5 Months

Corey Hart left Sunday's game against the Twins with an apparent hamstring injury.

Hart appeared to tweak his hammy on a stolen base in the fourth inning. He immediately came off the field, not even waiting for the Mariners' trainer to check on him. The M's should update Hart's status before long.

Corey Hart 1B/RF.. SEA 5 Months

Corey Hart had a brutal night at the dish in Friday's loss to the Twins, going 0-for-5 with a pair of strikeouts.

Hart also left five runners on base, including a pop out with the tying run at third base with one out in the ninth inning. The rough night leaves him hitting just .209/.293/.351 on the season.

Corey Hart 1B/RF.. SEA 5 Months

Corey Hart went 2-for-4 with two doubles in Sunday's loss to the Marlins.

Hart scored the Mariners' first run of the game following the double, and he was replaced for a pinch-runner after leading off the ninth inning with another two-base hit. The right fielder is hitting .269 in his first three weeks of action after missing all of 2013 with knee injuries.

Corey Hart 1B/RF.. SEA 6 Months

Corey Hart is playing right field for the first time with the Mariners Thursday afternoon vs. the Rangers.

Hart missed the entire 2013 season after undergoing dual knee surgeries, so he has been limited to DH duties in his 10 starts so far with Seattle. The 32-year-old has displayed good power in the early going, boasting three home runs in 43 plate appearances.