Falcao sustained the injury 57 minutes into Atletico Madrid's 2-0 victory over Levante in a La Liga match Sunday when he was dashing to chase the ball. The 26-year-old asked to be substituted right after the injury and had to lame off the pitch clutching the upper part of his left leg, reports Xinhua.
After the match Atletico coach Diego Simeone revealed Falcao needed to rest for some 20 days.
The Colombian striker has scored 18 league goals this season tying with Real Madrid's Cristiano Ronaldo in the second place of the league scoring list with Barca's Lionel Messi enjoying the leading position with 29 goals.
Atletico are currently in second place in the league table, eight points behind leaders Barcelona.