New Wellington Phoenix A-League signing James McGarry, right, in action for the club's reserve team.

The Wellington Phoenix have signed teenagers Logan Rogerson and James McGarry to three-year deals.

The 17-year-olds were members of the A-League club's academy but have quickly graduated to its squad of full-time professionals.

'I wouldn't sign them on a pro contract if I didn't think they had a chance of playing in the A-League," Phoenix coach Ernie Merrick said.

Rogerson has already made his first All Whites squad, having been part of the squad that drew with Myanmar earlier this week, while McGarry is the son of former All White Mike McGarry.

Mike McGarry, who won 54 caps for New Zealand between 1986 and 1997, was regarded as one of the most talented players of his generation and the Phoenix feel son James is blessed with the same technical ability.

Both of the teens said they had been in awe of some of their new team-mates when they first began training with the squad, but were now more comfortable. Merrick said that was being reflected in their performances on the practice pitch.

The Phoenix fly out to Sydney for a week-long pre-season trip on Saturday, where they'll play the Western Sydney Wanderers, national league side Apia Leichhardt and then Sydney FC. The club still have four contract spots available on their roster ahead of their opening A-League clash of the 2015/16 against the Newcastle Jets at Westpac Stadium on October 11.