Peter Kenyon is considering leaving Chelsea on a high after successfully renegotiating the club's shirt sponsorship deal with Samsung.

The club are expected to announce an extension to their existing five-year deal this week, which is believed to be an improvement on the present £11million-a-year package.

Kenyon, the chief executive, has been focusing on commercial work for some time as others at the club have come to the fore on the football side, and after concluding negotiations with the Korean electronics company he is weighing up whether it is the right time to move on. He is understood to have felt increasingly sidelined in recent months: he played little part in the appointment of Carlo Ancelotti as manager last month, and was on holiday when Luiz Felipe Scolari was sacked in February.

Chelsea's promotion of Frank Arnesen to the new position of sporting director this week was another blow to Kenyon, because there is bound to be an overlap between their respective roles. The Dane was in charge of youth development and scouting, but will take greater responsibility for signing first-team players, an area previously headed by Kenyon.

The 55-year-old kept a low profile when Ancelotti was introduced to the media last week and is not expected to appear to promote the Samsung deal, another indication that he may be on his way out. Kenyon does not have another job to go to, but there have been persistent rumours linking him with a move to Manchester City and, given his wealth of experience with Manchester United, where he was also chief executive, and Chelsea he is unlikely to be short of offers.

Chelsea are adamant that Kenyon is staying and have no plans to dismiss him.