Gonzalo Higuain has been one of the most prolific strikers on the planet this year, scoring an incredible 36 goals in Napoli's Serie A campaign.
The Glasgow club are said to be keen on bringing the Crewe star to Ibrox.
Yaya Touré is widely expected to leave Manchester City in the summer.
Sunderland's Jeremain Lens has made just 14 Premier League starts this season.
Shane Long and Jonathan Walters will be hoping to get the better of the Tottenham defender for the Republic of Ireland.
Newcastle United manager Rafael Benitez is considering his future at St. James' Park.
Harry Kane has netted 25 Premier League goals for Tottenham Hotspur this season.
Mesut Ozil believes Arsenal let themselves down this season.
The winger is on loan with the Scottish Premiership side from Manchester City.
Derby County striker Andreas Weimann linked up with Sheffield Wednesday midfielder Barry Bannan and Aston Villa.