Beijing Guo'an are suing German second division club TSV 1860 Munich for 600,000 euros in a dispute over loan payments for China midfielder Shao Jiayi, a newspaper reported on Thursday.

Shao, 26, was loaned to TSV 1860 Munich by the Chinese Super League club in 2003, but state media reported last August that the German club had failed to make a scheduled payments on the four-year deal.

The Beijing News said the club had consulted a sports lawyer at Real Madrid, who have a co-operation deal with Guo'an.

"In international legal disputes, there can't be any mishaps," the paper quoted Guo'an's general manager Li Xiaoming as saying. "We have made meticulous preparations."

Shao said he had completed his contract with Munich 1860 and hoped the dispute could be settled so he could move on, possibly to newly-promoted Bundesliga club Energie Cottbus.

"I believe Guo'an and Munich can certainly have a good solution," said the Chinese international, whose playing future remains on hold pending the outcome of the dispute.

"I still haven't reached happy times yet. There are many issues that need to be resolved," Shao said.

Shao's agent said Energie Cottbus were very interested in the player, despite his stint in Munich being marred by injury and lack of game-time.

"(Their) position is clear, they really hope to get Jiayi," he said, adding that Energie Cottbus was planning "a whole raft of co-operation" with Guo'an, including player development programmes and tour matches in Beijing.