England Under-21 winger Madueke has reportedly undergone a medical with the Blues ahead of joining from PSV Eindhoven for around £35million.
Ukraine international Mudryk moved to Stamford Bridge from Shakhtar Donetsk last weekend in an initial 62 million Pound deal and is likely to feature in Saturday's game at Liverpool.
Asked what he could say about 20-year-old former Crystal Palace and Tottenham youth player Madueke, Potter replied: "Nothing really.
"I know there is a lot of noise around there but at the moment nothing to announce, the club hasn't announced anything and I'm not in the position to speak any more.
"Until he's a Chelsea player, nothing further to say. I don't like to talk about players who aren't Chelsea players."
While Madueke's possible arrival is yet to be confirmed, wideman Mudryk has had a full week's training at Cobham.
The 22-year-old was paraded on the pitch at half-time of Sunday's 1-0 win over Crystal Palace and is pushing for involvement at Anfield.
"Yeah, there's a chance (he will feature)," said Potter. "It's how much he can do. I think 90 minutes, no. There's probably a role for him at some stage in the game.
"He's a young player, exciting player, fantastic speed one v one, can attack the backline and now we've just got to help him adapt to the Premier League, adapt to us.
"He's obviously come from a mid-season break, so hasn't played so much football recently but has been training well. We'll assess him and see how much he can play at the weekend."
The slender success over Palace - only Chelsea's second in 10 top-flight outings - eased the pressure on Potter but he is still hampered by a lengthy injury list.
While England defenders Ben Chilwell and Reece James have returned to training, the former Brighton head coach does not expect to have any of his absentees back available at Anfield.
"I would say no," he said of injury returns.
"Ruben (Loftus-Cheek) was on the bench the last match to be on the bench essentially but he's a lot closer now so he can play more minutes.
"Boys are progressing well, Reece has joined team training but won't be involved at the weekend, same as Ben Chilwell. And then everybody else is pretty much where we were."
Chelsea take on Liverpool with both sides languishing in mid-table, level on 28 points.
Potter backed rival coach Jurgen Klopp to sort out the Merseyside club's current problems.
"It amazes me how people talk about the Premier League being the best league in the world and then I'm asked about whether it's surprising if people struggle in it," he said.
"Jurgen's a fantastic guy, a fantastic manager.
"They will fix it, they will come through the struggles and then we all know their quality."