Ghanaian midfielder Richard Donkor suffered an injury during Falkenberg's 2-1 win at home to Brommapojkarna in the Swedish Superettan over the weekend.
The 20-year-old was replaced by Tobias Englund in the 46th minute after he picked up a knock.
Compatriot Enoch Kwakwa, who missed few opportunities in the game, was also pulled out.
Donkor signed a one-year contract with Falkenberg in March this year, scoring a goal in two matches.
The youngster started his professional career with top-flight side BK Hacken in 2014 but could not break into the First Team.
He was trained at the famous Right To Dream Academy in Ghana.