HORSE RACING - JOCKEY WEAVER RECEIVES 21-DAY BAN .  LONDON 1996-08-28  Leading rider Jason Weaver received a 21-day ban from the disciplinary committee of the Jockey Club on Wednesday .  Weaver had been reported after being found guilty of irresponsible riding at the provincial track of Pontefract 10 days ago .  It was his fourth riding offence this season .  Although five days of the ban were suspended until January 1 , Weaver will miss next month 's big St Leger meeting , including the ride on top stayer Double Trigger in the Doncaster Cup .  Weaver shot to prominence in 1994 when he won the [START_ENT] English [END_ENT] 2,000 Guineas on Mister Baileys in his first ride in a classic .
England