St Johnstone must cope without injured defender Keith Watson against Aberdeen
St Johnstone defender Keith Watson has been ruled out for about four weeks ahead of the Ladbrokes Premiership encounter with Aberdeen on Sunday. The right-back had a scan on his injured thigh which revealed tendon damage. Chris Millar and Ally Gilchrist (both groin) also remain out along with Dave Mackay, who is working his way back from hip surgery.