Following Sancho's return to Manchester United and Mykhailo Mudryk's uncertain future on the back of the FA's anti-doping charges against him, Chelsea are looking to sign wing options this summer with Borussia Dortmund's Gittens and Brighton's Joao Pedro linked with Enzo Maresca's side. Nevin believes that the signing of Gittens would be an 'improvement' to Maresca's side compared to the options he had with Sancho.
Nevin added: "Jamie Gittens would be an improvement on Jadon Sancho. The problem for Chelsea could be that nobody knows, and recent history will tell you, how players coming from the Bundesliga will perform in England.
"We don't know if Jamie Gittens will perform but he absolutely fits the bill of what Chelsea are after in the transfer market. He's 20 and scored 12 goals in 48 games across all competitions last season, which is really good for a wide player. You do, however, have to remember that the Bundesliga is completely different to the Premier League.
"Someone like Florian Wirtz is a no-brainer and is almost a certainty to work, which is why you have to pay big money to get him. Gittens isn't one of those but he's young enough to ensure he'll always have sell-on value, which mitigates how big of a risk he is as you can sell on at a small loss if required. That's what makes the Chelsea transfer model work.
"I'd be in the camp of signing Gittens over Sancho. No disrespect to Sancho, but he's not a massive improvement. You need to bring in players who are currently better than what you already have in the form of Pedro Neto and Noni Madueke, which isn't the case with Sancho."