ST. PAUL — The Minnesota Frost re-signed six players on Saturday during the fifth phase of the PWHL’s expansion process, which each team has an exclusive window to re-sign its own players that were on expiring contracts. Forward Sam Cogan was signed to a two-year contract. Forwards Claire Butorac, Klára Hymlárová, Élizabeth Giguère, Peyton Anderson and defender Brooke Becker were re-signed for one season. The Frost now has 14 players under contr…