Modern pentathlete Samantha Murray will lead an eight-strong British squad at this week's season-opening World Cup.
It is the first time Murray, 25, will compete internationally since she became world champion in September.
The Olympic silver medallist is joined in Florida, USA, by fellow world medallists Joe Evans and Katie French.
Mhairi Spence, the 2011 world champion, competed in GB winter ranking races, but has not yet taken part in enough events to be considered for selection.
|GB Modern Pentathlon World Cup team|
|Kate French||Joe Evans|
|Samantha Murray||Jamie Cooke|
|Freyja Prentice||Joseph Choong|
|Joanna Muir||Tom Toolis|
The Sarasota World Cup runs from 18-23 February and marks the start of a crucial season for athletes hoping to secure their places at the 2016 Rio Olympics.
"It is essentially a long time since anyone has stepped into that bubble of the big event," said GB performance director Jan Bartu.
"We went with the top-ranked athletes based on our recent [selection] events."
The first opportunity to claim Olympic quota berths will be at the World Cup Final in June in Minsk, Belarus.
However, the European Championships, which take place in Bath in August, offers eight Olympic places and is seen as the key event for the British team.