National LeaguePHILADELPHIA PHILLIES — Agreed to terms with 1B Chris McGuiness and RHPs Sean O'Sullivan and Kevin Slowey on minor league contracts. BUFFALO BILLS — Released WR Mike Williams. SAN DIEGO CHARGERS — Placed G Johnnie Troutman on injured reserve. ST. JOHN'S — Signed women's basketball coach Joe Tartamella to a contract extension through the 2019-20 season. UNLV — Named Barney Cotton offensive coordinator, Kent Baer defensive coordinator, Jamie Christian running backs coach, Ron O'Dell quarterbacks coach, Joe Seumalo defensive line coach, Andy LaRussa safeties coach/special teams coordinator, J.D.