Don Cossack: Cheltenham Gold Cup champion retired with leg injuryBBC Local News: Gloucestershire -- Reigning Gold Cup champion Don Cossack is retired with a leg injury suffered in April 2016.
BBC Local News - UKAlso reported by •MailOnline •RTE.ie •Gloucester Citizen •BBC Sport
Racecourse return nears for Don CossackCheltenham Gold Cup hero Don Cossack remains on course for a possible return to competitive action in February.
RTE.ie - Sports
Don Cossack retirement leaves Thistlecrack odds-on for Cheltenham...Thistlecrack is now an even stronger odds-on favourite for Timico Cheltenham Gold Cup glory following the retirement of 2016 hero Don Cossack.The Gordon...
Somerset Guardian - Sports