• Scans confirm Chelsea midfielder has calf muscle tear• Lampard to miss FA Cup tie against Queens Park RangersFrank Lampard is a major doubt for Chelsea's home Premier League game against Manchester United early next month after scans confirmed the midfielder sustained a small tear to a calf muscle during Saturday's goalless draw at Norwich. The 33-year-old was taken off in some discomfort after 36 minutes at Carrow Road amid fears that the damage was severe. Although the swelling has receded and the medical tests have offered a more positive outlook, Lampard will miss Saturday's FA Cup fourth-round tie against Queens Park Rangers and the tr...