Alexander, of course, used the word "legendary" to describe the surgery in the Instagram post and thanked the fans for the support.
"Minor set back for a legendary come back," wrote 49ers teammate Arik Armstead in the comments.
"Yesssirrrrrr," wrote defensive tackle D.J. Jones.
"Heal up fast bra!! Legendary as always," wrote running back Matt Breida.
"Boy gon be back better than ever," wrote fellow "Hot Boyzz" linebacker Fred Warner.
Several other players, like Jaquiski Tartt, Richard Sherman, Jerick McKinnon, and D.J. Reed, also left comments for their injured teammate.
The 49ers signed Alexander to a four-year deal in March. He became a vocal leader on the defense and finished the year with 34 combined tackles, 0.5 sacks, four passes defensed, an interception, and a forced fumble through eight starts.
More San Francisco 49ers News
-
Canton-bound: 49ers legendary running back Roger Craig selected to Pro Football Hall of Fame
The wait appears to be finally over. Roger Craig, one of the most dominant running backs of the 1980s, has reportedly been selected for enshrinement in the Pro Football Hall of Fame. Craig, who was named to the All-Decades Team in the '80s, won three Super Bowl titles with the... -
Christian McCaffrey says 49ers would welcome Deebo Samuel reunion
A reunion between Deebo Samuel and the San Francisco 49ers may seem unlikely after the wide receiver pushed for a trade last year. The 49ers ultimately sent Samuel to the Washington Commanders, where he finished the season with 802 scrimmage yards—the second-lowest total of... -
49ers mailbag: Will SF trade Mac Jones? Is there anything to electrical substation talk? Will 49ers be spenders in free agency?
Can't get enough of the San Francisco 49ers? We can help with that. We're back with a brand-new 49ers Webzone Mailbag. We asked for your best 49ers questions, and you came through with several good ones. Thank you for submitting those. Before we jump into the mailbag, be sure... -
Mac Jones opens up about 49ers future and NFL uncertainty
Much like Super Bowl champion Sam Darnold did in 2023, Mac Jones has revitalized his NFL career with the San Francisco 49ers. Darnold used his 2023 season in San Francisco as a springboard to a starting opportunity with the Minnesota Vikings and eventually a lucrative deal...