The assumption was that Jacoby Ellsbury would return to MVP-caliber form this season with free agency approaching.
Ellsbury is batting .241 with a .303 on-base percentage. He has only one home run and it came on April 7 in Toronto.
He leads the league with 13 stolen bases and the majors with 208 plate appearances, but also has produced 147 outs, most in the majors.
"I wouldn't say he's pressing," John Farrell said. "How do you differentiate pressing and frustrated? Because it feels like he's gotten pitches that he hasn't squared up. He's just missed them, so there's a little frustration. I wouldn't say he's pressing to the point of something's ticking on him, time is ticking. No. He's a good player, and we've got to get him back to that level."