BUCHAREST, June 5 (Reuters) - Romanian captain Gheorghe Hagi has a muscle strain and will have to take it easy in training for several days, the national team's doctor said on Monday.

The 35-year-old midfielder trained with his country's Euro 2000 squad for just half an hour on Monday and missed last weekend's 2-1 friendly victory against Greece because of the injury and fatigue.

'Hagi seems to have a muscle strain in his left thigh,' doctor Pompiliu Popescu told reporters. 'He needs several days of slight training to prevent his injury from aggravating.'

Romania's first game of the European championship is against holders Germany in the Belgian city of Liege on June 12.

Coach Emeric Ienei said after Romania's final warm-up against Greece that he had decided to keep Hagi on the bench because of his 'advanced stage of tiredness'.

Hagi, despite being sent off in the final, was inspirational in helping Galatasaray win the UEFA Cup last month and become the first Turkish side to win a European trophy.