Hillen said he will need a complete summer of strength training if he hopes to return to training camp at 100 percent.
Washington Capitals' Top 25 for 2014-15: No. 19 Jack Hillen →
Meanwhile, defenseman Jack Hillen admitted he sustained a concussion during a nasty collision with teammate Alex Ovechkin on March 25 in a game against the Los Angeles Kings.
Capitals Notes: Team doesn't have many roster decisions to make →