Frederic (illness) won't play versus San Jose on Monday, per Kevin Paul Dupont of The Boston Globe.
Frederic has produced seven goals, 14 points, 66 shots on net, 25 blocked shots, 132 hits and 42 PIM through 47 appearances this season. His next chance to play will come Wednesday versus New Jersey. Oliver Wahlstrom will replace Frederic in Monday's lineup.