The attacking midfielder will undergo a medical with the K League club but a previous agreement with Newcastle Jets could cause problems

Brisbane Roar have sold Dimitri Petratos to K League club Ulsan less than a fortnight after Newcastle Jets announced they had signed the attacking midfielder for next season.

Roar revealed on Monday that they had accepted an offer from Ulsan for Petratos, with the 24-year-old set to fly to South Korea from China after initially travelling to Shanghai for Brisbane’s AFC Champions League (ACL) play-off versus Shanghai Shenhua on Wednesday.

Petratos will undergo a medical with Ulsan before completing his transfer.

On January 25, Newcastle announced they had signed Petratos for the next three A-League seasons, while his younger brother Kosta will also move to the Jets from Perth Glory.

The lure of living closer to his Sydney-based family was given as a key reason for Dimitri’s move to Newcastle.

The Jets are understood to be monitoring the situation.

In four seasons with Roar, Petratos has played 84 A-League games and scored 15 goals.

He was a regular in Brisbane’s premiership-championship double-winning season of 2013-14.

Assuming the transfer is completed, Petratos will become the fourth Australian contracted to a K League club for the 2017 season.

Tomislav Mrcela is set for his second campaign with Jeonnam Dragons, while Matt Jurman and Connor Chapman have joined Suwon Bluewings and Incheon United, respectively.

Ulsan, who are two-time South Korean champions, finished fourth in the K League last season and will play an ACL play-off against Hong Kong’s Kitchee on Tuesday.

If they win and Brisbane beat Shenhua, Petratos would face his former club in Group E.