Manchester United manager Sir Alex Ferguson has praised Athletic Bilbao coach Marcelo Bielsa for rejuvenating his Spanish side.
The two teams go head to head this evening in the Europa League round of 16 and Ferguson believes that Bielsa should take credit for his "determined" side.
"I admire his work because I see the emergence of a very good Bilbao side," said Ferguson. "They are very determined and organised, with a great belief in themselves. That is the hallmark of their coach. He has instilled these qualities in his team.
"We know how difficult a game it is going to be for us. This is the best Athletic team I have seen for some years."
The two sides meet at Old Trafford this evening.