The former Chelsea midfielder has been ruled out since making his home debut against Odense in Villa's 1-0 Intertoto Cup victory.
And Sidwell now looks unlikely to make his first Premier League start this month after Martin O'Neill told him to be patient with his recovery.
O'Neill can afford to be patient, with Gareth Barry set to stay at the club and Stiliyan Petrov showing more determination than ever.
Both were in fine form against Man City on Sunday as Villa claimed a fantastic 4-2 victory.
And if the current central midfield pairing continue in the same vein at the Britannia this weekend, Sidwell may face a fight to get into the first team.
No wonder he is so keen to make a speedy recovery.