Celtic striker Chris Killen will use Saturday's friendly against Sunderland to make a case for starting in the Hoops' crucial Champions League qualifying clash against Dinamo Moscow on Wednesday.
The New Zealand striker was out of the picture under former boss Gordon Strachan but impressed new manager Tony Mowbray in pre-season games, scoring a double against Brisbane Roar in Australia before netting one in both games against Egyptian side Al Ahly and Tottenham in the Wembley Cup.
However, Killen was left on the bench for the visit of Dinamo to Celtic Park in the first leg on Wednesday, appearing after the break when the home side tried to claw back the 1-0 deficit which leaves them with an uphill task in the return game in Moscow.
"I think it's important for everyone in pre-season to give a good account of themselves and show the manager that you are here to play," Killen said.
"We know we have to win in Moscow. We are going to go there to give it our best shot.
"It's just disappointing we couldn't put away our chances on Wednesday and come away with the win, but I am confident we can do it."