McRae's last match in charge was the 32-6 victory over Wakefield
Salford City Reds have confirmed head coach Shaun McRae will be absent on medical advice for the next month.
The 51-year-old took over at the Reds in June 2007 but was unable to save the club from relegation.
McRae did lead the Reds back to the Super League at the first attempt as well as winning the Northern Rail Cup.
Director of football Steve Simms and assistant coaches Malcolm Alker and Phil Veivers will take charge of team affairs during his absence.
However, the club announced coach Veivers is unavailable this weekend as he has returned to Australia to be with his family after a bereavement.
McRae has found himself under pressure during the opening weeks of the Super League season after Salford were thrashed
42-12 by Crusaders in Cardiff
56-22 at home by St Helens
in their first two games of the campaign.
Angry fans called for his sacking following the defeat by Saints, but the Reds eased some of the pressure on their coach by
winning 32-6 at Wakefield on Sunday.