WESTERN Sydney Wanderers have added three new players to their fledgling A-League squad, including former Aston Villa reserve and Young Socceroo Reece Caira.

Former Gold Coast United goalkeeper Jerrad Tyson and state premier league midfielder Jason Trifiro rounded out the latest additions, announced by the club today.

It brings to 12 the number of official signings for the new A-League franchise, who face Central Coast in their A-League debut on October 6.

Coach Tony Popovic said he was pleased with the progress that's been made with the squad but admitted there was still a long way to go.

''(These signings are) very important,'' Popovic said.

"The three of them have earned the right to gain a contract and we're pleased to have them on board.

"Hopefully as we add players, the squad will work better together, understand each other better and we'll see the team improve in the way we want to play.''

Caira, from the NSW Central Coast, is a 19-year-old defender who can play across the back four or in a holding midfielder role. He was released by Aston Villa in May after spending two years at the club.

Trifiro, 24, grew up in Winston Hills in Sydney and was last playing for South Melbourne.

Goalkeeper Tyson, 22, earned a contract after trialling with the Wanderers. He made 15 appearances for Gold Coast.

The announcement follows the Wanderers' second pre-season win on Wednesday night, beating Blacktown Spartans 2-0.

Popovic said the match proved a tough test for his young players, especially in front of a crowd of more than 4,000.

"The whole side was pretty much a young team, a lot of triallists, a lot of players were probably nervous in front of maybe the biggest crowd they've been in front of,'' Popovic said.

The club has sold more than 500 memberships within the first two days of their release.

Originally published as Three new signings for Wanderers