Northern Ireland captain Steven Davis has said that his side has got to improve following a disappointing 1-0 loss to Poland in their opener at Euro 2016 on Sunday.
Michael O’Neill’s men failed to threaten the Polish goal during the game and were outclassed as Poland controlled the game to register their first win at a european championship in the Group C clash.
Speaking after the game in Nice, Davis said, “We always knew it was going to be difficult but we were not good enough.”
The skipper’s comments were echoed by striker Kyle Lafferty, who struggled in a lone front-man role.
"We were overawed. We knew it would be tough, but I think the whole performance was not a Northern Ireland performance and on Thursday [against Ukraine] we will go and put it right, said Lafferty.
"We always knew it was going to be difficult but we were not good enough," he added. "That was not the team that has got us here and we didn't turn up."
The Ulster men now need a performance against Ukraine in their next group match on Thursday in Lyon before the final game against Germany.
"We can change the fight and determination. [Coach] Michael [O’Neill] will talk to us and we will take notice and we will have a more determined and heartful performance on Thursday," said Lafferty.