Champion jockey Kieren Fallon has been called before the Jockey Club disciplinary panel over race fixing claims made by the News of the World.
Fallon says claims of race-fixing are 'completely ridiculous'
John Egan has also been asked to attend an inquiry into whether the pair communicated confidential information about horses.
The panel will seek to establish whether any material reward, gift, favour or benefit in kind was received.
It will also ask if the integrity and reputation of racing was prejudiced.
No date has been set for the inquiry, although the Jockey Club has informed the
two riders it wants the matter dealt with as soon as possible.
The newspaper alleged Fallon told undercover journalists that eventual winner Rye would beat his mount Ballinger Ridge at Lingfield.
Fallon has insisted he was completely innocent of allegations of race-fixing,
saying such claims were "completely ridiculous".
Ballinger Ridge was beaten by a short head despite being well clear approaching the final furlong.
Irregular betting patterns on a betting exchange prompted the Jockey Club to launch an investigation into the defeat.
Fallon has denied any wrongdoing over the incident and insists he repeatedly refused to accept any money or gifts for tips from undercover journalists.
On Thursday, Fallon completes a 21-day ban for failing to ride to the finish in a race at Lingfield.
He is set to resume riding at Kempton on Saturday.