2:17 We take a look at Jack Grealish's best bits from last season We take a look at Jack Grealish's best bits from last season
Tottenham have offered Aston Villa £15m for their highly-rated midfielder Jack Grealish, Sky Sports News understands.
Sky Sports News reported over the weekend that Spurs were considering a move for Grealish, who was not among their original list of transfer targets this summer.
Chelsea, Fulham and Leicester are also understood to be keen on the 22-year-old, who has emerged as a target for a number of top clubs due to Aston Villa's current financial problems.
Tottenham have been one of a number of top clubs who have scouted the England U21 international during an impressive season in the EFL Championship, where Villa reached the play-off final but lost to Fulham.
Chelsea and Fulham are also understood to be keen on Grealish
Villa value their prize asset at closer to double that figure - and they could be more interested in a bid from Chelsea, especially as it is likely to see Grealish loaned back to the club for next season.
However, despite their precarious financial state, senior sources at Villa believe they may not be forced to sell their star academy graduate after all.
At Monday's crucial board meeting, acting deputy chief executive Luke Organ painted a more optimistic picture of the club's finances and, while not ruling it out, suggested they may not be forced to sell the youngster.
Grealish remaining at Villa Park appears unlikely, though, with the player entering the last two years of his contract and Villa failing to get him to sign an extension midway through last season.
Gelson Martins could leave Sporting for free this summer
Arsenal are among a number of clubs interested in Portugal winger Gelson Martins, according to Sky sources.
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Martins could be available on a free transfer because he is one of four Sporting Lisbon players who have moved to terminate their contracts.
Several members of the squad were attacked at the club's training ground last month and want to end their stay at the club, citing 'just cause'.
The 23-year-old, who is part of Portugal's World Cup squad, was the second-choice target for Liverpool last summer behind Mo Salah.
He has continued to impress after staying at Sporting, scoring 10 goals in 42 appearances last season.
Big summer for… Emery
Arsenal are looking to be busy in the transfer market as they look to build a squad capable of breaking back into the Champions League places under Arsene Wenger's successor Unai Emery.
They are in advanced talks to sign Germany goalkeeper Bernd Leno and have agreed a deal for Borussia Dortmund centre-back Sokratis Papastathopoulos, with the transfer expected to be formally announced on July 1.
The Gunners are also in talks with Sampdoria for midfielder Lucas Torreira and an agreement is close, according to Sky Italy. They also hold an interest in Nice midfielder Jean Michael Seri and Freiburg defender Caglar Soyuncu, Sky Sports News understands.
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