Boston Celtics veteran Keith Bogans has admitted that he is frustrated with his current lack of playing time.

The 33-year-old has played in only four games so far this season since his summer arrival from the Brooklyn Nets.

"It's tough. Game days are my toughest days. At least I'll get in at practice. But come on, you've been playing basketball for 10 years and just this year they just tell you you're not playing? I've never not played in this league before," he told reporters, according to HoopsWorld.

Bogans insisted that he enjoys helping in the development of the younger players as the Celtics look to rebuild, but is keen to play more minutes.