Scrum-halves Matt Dawson and Kyran Bracken have both been named in England's 22 for their World Cup showdown with South Africa on Saturday.
Both players began the week with injury problems, Dawson nursing a hamstring problem and Bracken suffering from back trouble.
Bath scrum-half Martyn Wood was flown out to Australia during the week as a precautionary measure, but Dawson will start and Bracken is named on the bench.
Flanker Richard Hill, who suffered a minor hamstring strain in the 84-6 victory over Georgia last Sunday, is also fit to take his place in an unchanged team.
There are two changes on the bench with Leicester hooker Dorian West taking over from Mark Regan and Martin Corry deputising for second row and broken-toe victim Danny Grewcock.
Canada, resigned to a hefty defeat at the hands of the All Blacks, have decided to rest the majority of their first-choice players for Friday's Pool D game against New Zealand.
Coach David Clark - who is looking ahead to Tuesday's clash with Italy - has retained just one of the starting XV who were beaten by Wales last weekend.
Centre Marco di Girolamo is the only survivor in a side to be captained by blindside flanker Ryan Banks in the absence of Al Charron.
England:J Lewsey; J Robinson, W Greenwood, M Tindall, B Cohen; J Wilkinson, M Dawson; T Woodman, S Thompson, P Vickery, M Johnson (c), B Kay, R Hill, N Back, L Dallaglio. Replacements: D West, J Leonard, M Corry, L Moody, K Bracken, P Grayson, D Luger.
Canada:Q Fyffe; M King, J Cannon, M di Girolamo, S Fauth; J Barker, E Fairhurst; K Tkachuk, A Abram, G Cooke, J Cudmore, E Knaggs, R Banks (captain), J Douglas, J Reid. Replacements: M Lawson, R Snow, A van Staveren, C Yukes, M Williams, R Smith, N Witkowski.