Jakub Blaszczykowski has voiced his discontent at failing to be a first-team regular for Borussia Dortmund this season.
The Poland international captain has started just three of the club's eight Bundesliga matches so far this term.
The 25-year-old is not happy at being utilised off the bench and has revealed he is considering moving on in the New Year.
Blaszczykowski has been with Dortmund since 2007 having joined from Wisla Krakow and wants to be playing at this stage of his career.
"Being a player on the substitutes' bench at club level is something I'm concerned about," he told Gazeta Wyborcza.
"I'm the Poland captain and I'm not a first-team player at club level. I'm aware of my value.
"I don't want to spend the best years of my footballing life sitting on the bench and playing reserve-team football.
"My position is on the pitch. I'm clearly saying that I need to be playing in the first-team!"
He added: "Let us see if (a transfer) comes in the winter transfer window and if something happens then."