Britain on Friday confirmed their line-up for the team Three-Day Event starting on Saturday, with Scot Ian Stark opting to open his fifth and final Olympics bid on Jaybee as expected.

Stark, the only member of the squad also likely to compete in the individual event, leads a strong line-up expected to challenge defending champions Australia and New Zealand for the gold medal.

Jeanette Brakewell, on Over to You, Leslie Law, on Shear H2O, and Pippa Funnell with Supreme Rock, make up the quartet, with two riders competing on each of the two dressage days over the weekend, with the cross-country and jumping sections to follow.

The individual Three Day Event line-up, which begins next Wednesday, will not be finalised until after the trot-up for that competition on Tuesday, although Stark, with his second mount, Arakai, is expected to join Karen Dixon on Too Smart and Mary King with Star Appeal.

"The team is confident and feels well prepared with all the horses fully fit and ready to run," said team manager Matt Straker following a vet's inspection and trot-up this morning

Chef d'Equipe Yogi Breisner also expressed his confidence that after a successful preparation period, Britain were in a strong position to end the equestrian medal drought of the past two Olympic Games.

"Having walked the cross-country course - which is long, bold and challenging - and knowing my squad, I have enormous confidence in our competitiveness," he added.

Team for Team Three-Day Event: Jeanette Brakewell (Over To You), Leslie Law (Shear H2O), Pippa Funnell (Supreme Rock) and Ian Stark (Jaybee).