Corey Hart is batting .209 with five home runs this season. (Ronald C. Modra/Getty Images)
The Mariners placed designated hitter Corey Hart on the 15-day disabled list on Tuesday, two days after he suffered a strained hamstring in Sunday's win over the Twins.
The 32-year-old was diagnosed with a Grade 2 hamstring strain after his MRI on Monday, according to MLB.com Mariners beat reporter Greg Johns, and will be out for the next few weeks to rehab.
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In his place, Seattle called up Nick Franklin, who was supposed to be the team's second baseman until Robinson Cano signed for $240 million. Since his demotion to Triple-A, Franklin has posted a Pacific Coast League-leading .376 batting average and 1.114 OPS in 30 games in the minors.
Hart, a two-time All-Star, has hit just .209 with five home runs and has recorded a .647 OPS in 37 games prior to his injury. The injury comes after a strained right forearm Hart suffered during spring training.