A few hours later, he tweeted again.
"Thanks for all the positivity," Watkins said. "First time anything like this has ever happened to me so still kinda shocked. But the support helps a lot."
If healthy, Watkins might have challenged in Spring Training for a spot on Chicago's bench. He got a taste of the Major Leagues in each of the past two seasons, hitting .233 with a home run and six RBIs in 103 at-bats. At Triple-A Iowa in 2014, he hit .256/.327/.364 in 103 games.
Watkins won Cubs Minor League Player of the Year honors in 2012 after hitting .281/.383/.422 at the Double-A level, and he was added to Chicago's 40-man roster. He was just removed in December.
Adam McCalvy is a reporter for MLB.com. Read his blog, Brew Beat, and follow him on Twitter at @AdamMcCalvy. This story was not subject to the approval of Major League Baseball or its clubs.