SEATTLE -- Mariners first baseman Justin Smoak (sore left quad) was out of the lineup but available as a late-inning defensive replacement Tuesday.
"He's probably 70, 75 percent," manager Lloyd McClendon said. "He's just not there. It's a quad that's been very frustrating for him. We'll see how he is tomorrow. We'll just keep trying to move forward."
When asked if Smoak could land on the disabled list, McClendon said he is "day to day."
"We'll see what happens," McClendon said.
Smoak did some light agility drills, ran the bases and took batting practice Tuesday. He said the quad began bothering him a week and a half ago, though he initially thought it was just soreness. To rest the injury, he served primarily as a late-inning defensive replacement on Seattle's last road trip.
"I was thinking it was going to go away but it never really did," he said. "That's when we knew we should probably back off a little bit."
Smoak maintained he's getting better. McClendon agreed -- to an extent.
"I would say he's progressing some," McClendon said. "Obviously, [it's] not at the pace we would like."
Since May 1, Smoak has posted a .180/.264/.320 slash line with four home runs and 14 RBIs. In 2014, he's hitting .208 with seven homers, 12 doubles and 29 RBIs.
Adam Lewis is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.