Chelsea defender John Terry and goalkeeper Carlo Cudicini are doubtful for their side's game against Wigan in the Premiership on Saturday through injuries, British media said. England captain Terry was sidelined during Chelsea's last two games due to a back injury while Cudicini is still nursing a muscle problem. Khalid Boulahrouz is set to fill the void of Terry while Portuguese goalie Hilario is likely to start again. England winger Joe Cole is still out with a broken foot. Title holders Chelsea are now just two points behind leaders Manchester United after 18 games.