The Republic of Ireland international took a blow to the head during Saturday's 1-0 Barclays Premier League defeat by Hull and Vito Mannone, who replaced him at the KC Stadium, is standing by to take over against the Saints.
Midfielder Lee Cattermole and full-back Andrea Dossena both start three-match bans after being sent off in an eventful encounter with the Tigers, but manager Gus Poyet otherwise has no selection problems.
- Sports & Recreation
- Barclays Premier League
- Vito Mannone
- Lee Cattermole