Apr 1-2 FOOTBALL - Champions League quarter-finals first leg

Apr 3 FOOTBALL - UEFA Cup, quarter-finals first leg

Apr 3-5 RACING - Grand National Meeting, Aintree

Apr 4-6 RUGBY UNION - Heineken Cup and European Challenge Cup quarter-finals.

Apr 5-6 FOOTBALL - FA Cup semi-finals

Apr 5 RACING - Grand National, Aintree

Apr 5 MOTORCYCLING - British Superbikes, Brands Hatch (GP)

Apr 5-6 ICE HOCKEY - Elite League play-offs, Nottingham

Apr 6 FORMULA ONE - Bahrain GP, Bahrain

Apr 6 ICE HOCKEY - NHL regular season ends

Apr 6 MOTORCYCLING - World Superbikes, Spain

Apr 6 MOTORCYCLING - British Superbikes, Brands Hatch (GP)

Apr 8-9 FOOTBALL - Champions League quarter-finals second leg

Apr 10 FOOTBALL - UEFA Cup, quarter-finals second leg

Apr 10-13 GOLF - US Masters, Augusta

Apr 10-13 CRICKET - MCC v Sussex, Lord's

Apr 11-13 TENNIS - Davis Cup World Group quarter-finals

Apr 11-13 RALLYING - Cyprus Rally

Apr 12 RUGBY UNION - EDF Energy Cup finals day, Twickenham

Apr 12 MOTORSPORT - British Touring Cars, Rockingham

Apr 12-13 FOOTBALL - Scottish Cup semi-finals

Apr 12-20 BADMINTON - European Championships, Herning

Apr 13 ATHLETICS - Flora London Marathon

Apr 13 MOTORCYCLING - Portuguese MotoGP, Estoril

Apr 13 MOTORSPORT - British Touring Cars, Rockingham

Apr 14-20 TENNIS - WTA Family Circle Cup, Charleston

Apr 16 CRICKET - County Championship starts

Apr 16 BASKETBALL - NBA regular season ends

Apr 16-17 RACING - Craven Meeting, Newmarket

Apr 19 MOTORCYCLING - British Superbikes, Thruxton

Apr 19 RACING - Scottish Grand National

Apr 19-May 5 SNOOKER - 888.com World Championship, Sheffield

Apr 20 CRICKET - Friends Provident Trophy starts

Apr 20 BASKETBALL - BBL Championship regular season ends

Apr 20 MOTORCYCLING - British Superbikes, Thruxton

Apr 21-27 TENNIS - ATP Monte Carlo Masters

Apr 22-26 RACING - Punchestown Festival

Apr 22-23 FOOTBALL - Champions Leauge semi-finals first leg

Apr 24 FOOTBALL - UEFA Cup, semi-finals first leg

Apr 24-27 EQUESTRIAN - FEI World Cup final, Gothenburg

Apr 25 RACING - Betfred Gold Cup, Sandown

Apr 25-27 RUGBY UNION - Heineken Cup and European Challenge Cup semi-finals

Apr 25-27 RALLYING - Argentina Rally

Apr 26-27 TENNIS - Fed Cup World Group semi-finals

Apr 27 FORMULA ONE - Spanish GP, Barcelona

Apr 27 MOTORCYCLING - World Superbikes, Netherlands

Apr 28 SPEEDWAY - Slovenian GP, Krsko

Apr 29-30 FOOTBALL - Champions League semi-finals second leg