JERMAIN DEFOE has found out the secret to eternal youth. The 26-year-old will command a far greater fee this summer with a reported £73million release clause in his contract to ward off potential suitors. Getty Images3Jack Wilshere has been warned by Gareth Southgate to prove his fitness before returning. Manchester United star Luke Shaw is working hard to regain his fitnessThe Sun. AP:Associated Press4The Atletico Madrid star has netted 22 times this season, leaving him as one of . Getty Images7Carles Puyol is a Barcelona icon who graduated through club’s academyRex Features. EPA3Gylfi Sigurdsson is wanted by Newcastle boss Rafa Benitez to speahead their Premier League campa. Getty Images5Liverpool are hopeful of getting a bumper deal for the defenderLiverpool manager Jürgen Klopp thinks Pep Guardiola has more emotion because he is SpanishThe Sun. Reuters4Arsenal are interested in Sporting goalkeeper Rui Patricio – who was named in the team. It keeps the fire in my belly and I never once thought about retiring from international football.