Great Britain's Olympic silver medal-winning three-day event team are back in action at the Burghley horse trials, starting in Lincolnshire on Thursday.
Burghley coverage: Radio Five Live; BBC2, Sunday Grandstand from 1530 BST
Leslie Law, who also won individual gold on Shear L'Eau, heads the field on his reserve horse for Athens Shear H20.
Individual Olympic bronze medallist Pippa Funnell will aim to defend the title she won to seal the 2003 Grand Slam with the experienced Cornerman.
William Fox-Pitt and Jeanette Brakewell are also entered.
Fox-Pitt, who has twice won Burghley - in 1994 on Chaka and 2002 with Highland Lad - begins his bid for the treble on the handsome liver chestnut Ballincoola.
Brakewell, who secured two top-10 finishes at Burghley last year on The Busker and Plantagenet of Rushall, rides Highland Spirit and Burley Wood this time round.
Sarah Cutteridge, who was ruled out of the Games at the last-minute when her horse The Wexford Lady went lame, partners Future Perfect and Erbium.
But Mary King, who replaced her on the team in Greece - and was a winner at Burghley in 1996 - does not compete.
Among the top overseas names taking part are New Zealanders Blyth Tait and Andrew Hoy.
Tait, who won Burghley in 1998, rides Eze in what will be his last three-day test before he retires from the sport.
Athens was not a happy hunting ground for the Hoys
Another former Burghley winner Hoy, whose wife Bettina was stripped of individual and team gold for Germany in Athens, rides Master Monarch and Moon Fleet.
A total 33 riders will tackle the three-star event for the first time.
Meanwhile, the six-strong squad for the forthcoming Young Riders' European Championships has been announced.
Fiona Davidson, Olivia Haddow, Lucy Holliday, Alexandra Postolowsky, Oliver Smith and Isabelle Taylor have been called up for the event in Barocca d'Alva in Portugal from 23-26 September.
Molly Key and Abi Walters are named as reserves.
Burghley coverage on BBC Radio Five Live (Saturday and Sunday) and BBC2's Grandstand from Sunday 1530 BST