Saracens stand-in number ten Alex Goode learned of his switch from full-back to fly-half only 30 seconds before kickoff against Bath.
England coach Stuart Lancaster has released 18 players back to their Aviva Premiership clubs ahead of this week's Round 14 action.
London Irish boss Brian Smith hailed his side's best win of the season after they became the first team to win at the Allianz Park.
London Irish produced a shock 22-13 win over league leaders Saracens at Allianz Park on Saturday, scoring three first-half tries.
London Irish have recalled George Skivington to their starting line-up to captain the side against Saracens at Allianz Park.
Saracens have been hit by an injury blow after second-row Alistair Hargreaves was ruled out for three months with a wrist problem.
The semi-finals for this season's LV= Cup competition have been confirmed, with Northampton and Bath at home.
Saracens have announced that director of rugby Mark McCall and six members of the training ground staff have inked new deals.
Saracens have said they will play Gloucester at the HAC on Thursday 15 May, 2014, bringing professional rugby to the heart of London....
The schedule for the Heineken Cup quarter-finals have been confirmed, with three games taking place on Saturday and one on Sunday.
Hayden Smith makes his first appearance for Saracens since returning from the NFL as they welcome Newcastle Falcons on Sunday.
Newcastle's Joel Hodgson believes Saracens have disrespected them by playing the Sharks in a friendly the day before their LV= Cup clash....
Saracens director of rugby Mark McCall was left disappointed by his side's performance in their 21-11 Heineken Cup loss to Toulouse.
Toulouse secured a Heineken Cup quarter-final berth with a hard-fought 21-11 win over Saracens at Stade Ernest-Wallon on Saturday.
The Sharks have named twelve Springboks in their travelling squad that will tackle Saracens at Allianz Park on Saturday, January 25.
Saracens retained top spot in the Premiership thanks to a thumping 29-8 victory over lacklustre Gloucester at Kingsholm on Saturday.
Gloucester boss Nigel Davies has made just one change to his starting XV for Saturday's clash with Saracens at Kingsholm.