The 23-year-old is sure Paul Lambert's side will have learnt from their 4-0 home defeat at the hands of Tottenham earlier in the season, but has backed his team-mates to triumph
Andre Villas-Boas' men came away from Villa Park with a resounding 4-0 win in the Capital One Cup earlier this season, a feat they also matched in the league last December.
Spurs will also be keen to make amends following a surprise 3-0 defeat to West Ham last time out, but Walker is sure consistency will see the squad triumph.
|11/5||Tottenham are 11/5 with William Hill to beat Aston Villa without conceding
"Obviously they’ve got quality with Gabby [Agbonlahor] coming back and everything, so I think it will be a good game and we just need to stay focussed and keep doing what we’ve been doing.
"We just have to stick to the things that we’ve been doing well. The West Ham game was a bit of a disappointment with the result and also being a local derby, but we need to bounce back and show the fans that we’ve got it in us to be up there right at the end of the season."
The right-back feels the international break came at the right time for Tottenham as it gives the squad a chance to right the wrongs of their previous outing.
He added: "I don’t think it really is recovery time [over the international break] because we’ve got that many internationals playing in the team,” he added.
"But it gives us a bit of time to get away from the club and have a think about what went wrong, and what we didn’t do so well against West Ham, so probably it did come at the right time for us and hopefully we can get the win on Sunday and bounce back to winning ways."