Freeman has hit .067 (2-for-30) with one home run during two stints with Seattle and pitched an inning of relief in Saturday's 16-1 loss to the White Sox.
Valencia hurt his wrist sliding into third base on a triple in the second inning of Friday's game. The Mariners have 11 players currently on the disabled list and have used 42 players already this year, the most of any MLB team in the first 44 games of a season since the 1955 Kansas City Athletics.
Valencia had an MRI test on his wrist Sunday morning, but the club chose not to add him to the DL group for now.
"The injury bug has not left our clubhouse," manager Scott Servais said. "We're just trying to figure out a way to manage it and get through it."
• Left-hander James Paxton threw 37 pitches in a bullpen session Sunday and said his sore left forearm had no issues at all. He'll accompany the team to Washington, D.C., and throw a light bullpen Tuesday, make a rehab start with Double-A Arkansas on Friday and be in line to rejoin Seattle's rotation May 31 when the next homestand begins.
• Second baseman Robinson Cano is set to come off the disabled list Tuesday when his 10-day DL stint with a sore right quad concludes. Outfielder Mitch Haniger (oblique) is also close to coming off the DL, but he'll need to make a few rehab starts early next week before potentially rejoining the club in Boston or Colorado at the end of the trip.
• Pitchers Hisashi Iwakuma, Drew Smyly and Felix Hernandez will all accompany the team on its upcoming trip in order to continue working with the club's athletic trainers. All three played catch Sunday morning as they continue working back. Hernandez and Iwakuma are dealing with shoulder issues that likely will sideline them until June, while Smyly has been out since Spring Training with a strained elbow that could keep him out until late June or July.
Greg Johns has covered the Mariners since 1997, and for MLB.com since 2011. Follow him on Twitter @GregJohnsMLB. This story was not subject to the approval of Major League Baseball or its clubs.