Phil Kessel and Michael Ryder have both returned to Bruins practice this morning, and were taking part in down low, battle-style drills at the B’s practice facility in Wilmington. Ryder had been out the last two days — and missed last night’s game against the Washington Capitals — with flu-like symptoms. Kessel has been out of action since Jan. 10 with mononucleosis, but resumed skating following the All-Star break. Wednesday represented Kessel’s return to any battle-style drills in practice