Saracens hooker Matt Cairns has signed a new two-year contract with the club to extend his stay until 2010.
Saracens hooker Matt Cairns is set to be sidelined until the end of March after fracturing his arm in his side's victory over Viadana.
Ulster came from behind to beat Saracens 19-10 in the Heineken Cup.
Saracens cruised to a 34-16 victory at Vicarage Road against Leeds.