Cole Palmer has already surpassed Gianfranco Zola's exploits with Chelsea, and could write his name in Blues history if he guides them to the Premier League title.

That was the message from Jamie Carragher after Palmer's penalty double helped Enzo Maresca's side to an enthralling 4-3 comeback victory over Tottenham on Sunday.

Palmer has now scored from all of his 12 penalty attempts in the Premier League - the most in the competition's history without ever missing, after surpassing Yaya Toure's 11 spot-kick tally for Manchester City.

The England midfielder also has 50 goal involvements (33 goals, 17 assists) in just 48 Premier League games for Chelsea, a feat bettered by only three players.

Erling Haaland for Man City (39), Andy Cole for Newcastle United (43), and Mohamed Salah for Liverpool (46) are the only trio to reach that total in fewer appearances for a club in the competition.

Carragher believes Palmer has already secured Chelsea stardom, though further glory could await for the Man City academy product.

"When you think of Chelsea's flair players like Gianfranco Zola and Eden Hazard, I think Palmer has done more in 18 months than Zola did, and Zola is one of Chelsea's greatest ever players," the former Liverpool defender said on Sky Sports.

"He's on the same level as Hazard, and that came over four or five years. If he takes Chelsea to a title then he'd go down as one of their greatest ever players if he keeps doing what he's doing. He's a special player."

Maresca's band of young talent sit just four points adrift of Premier League leaders Liverpool, whose game on Saturday against Everton was postponed due to inclement weather.

There was a storm of a different nature at Tottenham Hotspur Stadium, however, as Chelsea fought from 2-0 down to complete a remarkable turnaround.

Enzo Fernandez and Jadon Sancho were both on target, along with Palmer's cool spot-kick heroics, highlighting the plethora of quality on offer to Maresca.

Carragher refuses to accept the Blues' early success as a rags-to-riches story, though.

"This Chelsea team is no underdog story," the former Liverpool defender added. "This is a team that has spent £1.2billion, but what they're doing this season is something totally unexpected.

"This club are right in the mix for a title challenge."