The New England Revolution have placed forward Taylor Twellman on the team's disabled list because of concussive symptoms.
Twellman, 29, will miss a minimum of six league matches.
The decision to move Twellman to the disabled list was made after he had a follow-up appointment with his doctors on Thursday, June 25, following a two-week break from athletic activities. He last participated in a Revolution training session on Tuesday, June 9.
Despite returning to the field for two appearances this season - May 30 against D.C. United and June 7 against the New York Red Bulls - Twellman suffered a relapse of symptoms and has not seen any action since. He scored two goals, including his 100th career MLS goal, against New York.