Defender Colin Hawkins is the only absentee with the Achilles injury which has kept him out for much of the season.
Regular goalkeeper Michel Kuipers has trained all week after a groin injury and his deputy, Graeme Smith, has overcome an illness.
But former Swindon keeper Peter Brezovan, signed as emergency cover last week, could keep his place for the League One encounter at the Withdean Stadium after keeping a clean sheet and saving a penalty on his debut in the 1-0 win over Exeter.
"We've got the whole squad apart from Colin Hawkins. Michel will have a little test, but he has been with us all week," said Poyet.
"So everything looks good, and now the problem is with the manager to pick the right team to play well and win games."