Gonzalez is in stable condition and is recovering. He apparently felt pains in his stomach and decided to go to the hospital, where it was discovered he had appendicitis -- an inflammation of the appendix.
Recovery times for the surgery can vary, but the good news for both him and the Rockies is that this happened with plenty of time still remaining in the offseason. He should be ready to play for opening day barring any unforeseen complications stemming from the procedure.
Emergency appendectomies are a familiar occurance in recent years across the MLB as players like Matt Holliday, Adam Dunn, Joaquin Arias and Andres Torres have all needed the surgery. Rafael Betancourt, a teammate of Gonzalez's on the Rockies, and Braves star Jason Heyward both suffered appendicitis during the 2013 season. Each missed about a month of action.
Gonzalez missed significant time in 2013 with a sprained finger, playing in just 110 games. He had been on an MVP pace when in the lineup, hitting .302/.367/.591 with 26 home runs and 21 stolen bases. He is moving to center field in 2014 as the Rockies traded Dexter Fowler this offseason. Gonzalez has won the Gold Glove award in left field each of the past two seasons.