THE personnel changes continue at Brisbane Roar, with the three-time A-League champions signing teenage defenders Kye Rowles and Connor O’Toole, but parting ways with midfielders Steve Lustica and Javier Hervas.

Rowles, still only 17, and 19-year-old O’Toole – both considered among Australia’s best defensive prospects – have signed two-year deals with the Roar.

Palm Beach product Rowles is a centre-back who played for Australia at last year’s FIFA under-17 World Cup.

Following a trial in Belgium with Club Brugge, Rowles was on the verge of signing for Melbourne City before joining the Roar.

Left back O’Toole is from NSW, had a stint with Adelaide United’s youth and also did part of his footballing education at the Seiritsu academy in Tokyo, Japan.

The young pair’s move to the Roar come as Lustica and Hervas leave the club.

It continues the post-season movements at the Roar after last week’s retirement of veteran defender Shane Stefanutto, midfielder Devante Clut’s departure for Newcastle Jets and the exit of Costa Rican striker Jean Carlos Solorzano.

media_camera Brisbane Roar player Kye Rowles.

Lustica, 25, made 22 appearances this season but only started in six matches.

The Canberra-born midfielder had two stints with the Roar, making 56 A-League appearances overall for Brisbane and scoring eight goals.

Spaniard Hervas, 26, made just two starts during his season-long deal.

He has already returned to Europe to pursue another opportunity.