Gosden colt returns to Riyadh for world’s richest race.

Top jockey accepts full recovery from injury will not come in time.

New system will help detect cocaine and other banned substances.

Record-breaking rider one of 12 overseas challengers in Saudi Arabia.

All donations to aid research into MND treatment.

Trainer’s fine also remains in Viking Hoard case.

Tizzard star misses Reynoldstown because of testing conditions at Ascot.

Nicholls-trained nine-year-old seeking second success in Grade One feature.

American ace Mike Smith in the saddle as exciting filly clashes with the colts.

Henderson seven-year-old remains prominent in Marsh Novices’ Chase market.