Formula One legend Michael Schumacher has admitted his relief after visiting stricken Ferrari driver Felipe Massa in hospital. The seven-time world champion has agreed to come out of retirement to replace Massa in the short term following the Brazilian’s freak accident in Hungary which left him fighting for his life. The 40-year-old had not previously had the time to visit Massa, last year’s world championship runner-up, as he has been undergoing medical tests and getting up to speed for his eagerly-anticipated racing return by practicing in a 2007 Ferrari