Polanco underwent surgery Thursday to repair the patellar tendon in his left knee, Jeff Passan of ESPN.com reports.
Polanco had a career-worst .651 OPS in 2024 while playing through the knee issue, and he's now getting the injury addressed. The second baseman is expected to be ready for spring training, but it remains to be seen which uniform he will be donning in 2025 as the Mariners weigh a $12 million club option or $750,000 buyout.