Chelsea: Terry out for "a matter of weeks"
Terry, who had missed the previous four domestic matches for the European champions while serving a ban for racially insulting Queens Park Rangers defender Anton Ferdinand last year, was hurt in a first-half collision with Luis Suarez.
"Today's MRI scans on John Terry's right knee thankfully show no significant damage to the cruciate ligaments," Chelsea said on their website.
"Chelsea Football Club's medical team will conduct further tests over the next two or three days once the swelling has subsided to determine how long John will be out, but it will be a matter of weeks not months."
There were fears Terry, who scored after 20 minutes in the 1-1 draw, could miss the rest of the season after the nasty collision buckled his knee and left him on crutches after the game.