The Villans boss is hoping his side can replicate Southampton's win over Chelsea at Stamford Bridge this weekend.
The midfielder had reportedly become surplus to requirements at Villa Park, despite having been used heavily by Sherwood when he took over last season.
He has not featured for the side so far in the 2015/16 campaign, with Sherwood selecting several youngsters ahead of him, but he now says the midfielder is back in the squad and they may need to use his experience in a difficult situation.
"Charles is back in the squad,” he told avfc.co.uk
"He's a talented player and has the experience we might need in a difficult situation. He's in the group. The break came at a good time in terms of fitness work really - we've been working with the boys who have been short of it.”
The Villans are currently struggling in the Premier League, sitting 18th in the table after eight games, with rumours abound that Sherwood could heading for the sack.
They face a visit to Stamford Bridge this weekend, although that trip is considerably easier this season given Jose Mourinho’s side have struggled and sit 16th in the table.
And Sherwood says the game is almost a free shot for his side and should be looking to take inspiration from Southampton - who were 3-1 victors in west London prior to the international break.
"If you go there and wait to get beat, you'll get beat," he added.
"I think Southampton showed what you can do there - they went there and played on the front foot. Hopefully we can go there and get the same result. It's almost a free shot for us. No-one expects us to go and get anything at the Bridge.”