Leeds United alerted after Doncaster Rovers' bid for Sharp fails

The Blades rejected a 650,000 offer from Rovers for Sharp yesterday which has signalled the start of a summer auction.

Both Leeds and Derby County have also expressed interest in the 24-year-old who spent last season on loan with Rovers following a fall-out with Blades manager Kevin Blackwell.

Sharp has been identified by Leeds as a replacement for Jermaine Beckford, who is expected to join Everton as a free agent.

The Blades want over 1m for the 24-year-old but are also aware that his transfer value will slump dramtically once the final year of his contract starts.

Blackwell, meanwhile, has been in talks with former Barnsley striker Daniel Bogdanovic about a move to Bramall Lane.

The Maltese international demanded a 100 per cent wage rise prior to being released by Barnsley this summer and is keen to join the Blades who are sponsored by the Maltese tourism board.

Doncaster manager Sean O'Driscoll wants Rochdale defender Tom Kennedy to fill the gap vacated by the departure of Gareth Roberts to Derby.

Kennedy, 24, the nephew of former Liverpool left-back Alan Kennedy, is out of contract after playing a key role in Rochdale's promotion to League One.

Veteran goalkeeper Neil Sullivan and defender Adam Lockwood have both agreed new deals to stay at Doncaster.

Sullivan, now 40, has signed a one-year deal while Lockwood, who was hampered by injury problems last season, has put pen to paper on a two-year deal.

Former Doncaster striker Paul Heffernan is set to sign for League One club Bristol Rovers.

Heffernan, who is now a free agent, spent two months on loan with the the Pirates last season, scoring four goals in 11 games

Charlton Athletic have agreed to sign striker Akpo Sodje from Sheffield Wednesday.

Sodje, 29, was out of contract at Hillsborough and spent the last six months on loan with the London club, scoring five goals in 25 appearances.

Huddersfield Town have been granted permission to speak with Falkirk midfielder Scott Arfield over a 400,000 move.

Town defender Tom Clarke will be sidelined for a minimum of six months after snapping cruciate knee ligaments in the League One semi-final play-offs.

Clarke limped off two minutes from the end of last week's first leg at the Galpharm Stadium. He suffered a similar injury in his other knee four years ago and spent 11 months out.

Winger Adam Smith has quit York City and joined Mansfield Town in the wake of the club's failure to win promotion to the Football League. Defender Ben Purkiss could be next to jump ship amid interest from play-off conquerors Oxford United.