Athletic Bilbao were held to a 0-0 draw at home to Shakhtar Donetsk in their Group H opener on Wednesday as they failed to mark their Champions League return with a victory.
The contest at Bilbao's impressive new San Mames stadium was evenly-matched, with both sides creating plenty of chances and the home side perhaps narrowly having the upper hand.
Bilbao finished fourth in La Liga last season and are making only their second appearance in the Champions League group stage and their first since the 1998-99 campaign, Sport24 reported.
Manager Ernesto Valverde's, who is Bilbao's former striker, men manage to compete at the highest level even though they the players are of Basque origin, the report added.