Steven N\'Zonzi
N'Zonzi has been instrumental in Sevilla's success Getty Images

Sevilla midfielder Steven N'Zonzi is delighted with interest from Chelsea but is unwilling to comment on his future until a firm offer is lodged by the Premier League club. Reports in Spain claim the 27-year-old is subject to interest from west London, which could see him return to English football after leaving Stoke City in 2015.

Mundo Deportivo understands that the Blues, Manchester City and Juventus are all interested in the player, but that Barcelona are braced to match the player's €30m [£26.71, $33.18m] release. Last season's Europa League winners are desperate to retain N'Zonzi and revealed in October they had begun talks over a contract extension for the Frenchman.

The former Blackburn Rovers man is contracted until 2019 but he could be snatched away by Chelsea or Barca in the coming months. The midfield enforcer is impressed with the interest in his services but would prefer to wait until a bid is made by an interested party before making a clear decision over his future.

"It's nice, it's good," N'Zonzi told L'Equipe, when asked about the reported interest of Chelsea. "But I always say that this type of club is interested in other players too. I am not the only one. I know that big clubs are interested in many players.

"I focus on what I do at Sevilla. Until there is something concrete, we must remain professional. Some clubs were interested [in the close-season], but I feel good at Sevilla. I enjoy the game, the football, I like the way Sevilla play, I feel good in the city, with the fans and the club and I'm enjoying myself."

N'Zonzi enjoyed a stellar first season with Sevilla, playing a key role as the club won the Europa League for a fourth successive campaign – which included victory over Liverpool in the final. Such performances have seen him linked with a move to Chelsea, who have become reborn under Antonio Conte's guidance.

Victory over Everton came courtesy of an inspired display from Eden Hazard, who scored twice, while Diego Costa, Marcos Alonso and Pedro also found top the net to take Chelsea, for a matter of hours, top of the Premier League. Though they have since been replaced by Liverpool, the performance was the clearest indication yet that the club have recovered from Jose Mourinho' ill-fated second spell charge.