Pedro has missed our last two matches against Everton and Liverpool after starting against Newcastle and Forest while Sandro didn't make the midweek trip to Anfield due to a knock.
Roberto was asked in Friday's pre-match press conference if Pedro, Sandro and James Maddison were ready to start against Villa - Madders came on for the final 15 minutes at Anfield.
He said: "Porro, Tonali, Maddison are all available to play. Normally, we have to understand the situation in terms of physical condition, but all of them are ready."
Asked more about Madders, Roberto added: "James is working with the team the last 10, 15 days, maybe less than 15 days. Even if he is a technical player, he needs to be fit, to stay in a good condition. When he arrives to the best condition, it is very important for us, as a personality, as a characteristic, as a quality, as an experience, the quality of his passes are different than the others."
Xavi Simons, Dejan Kulusevski, Mykhailo Mudryk and Wilson Odobert remain out.
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