Manchester United forward Marcus Rashford insists he'll play again this season.

The 22-year-old is facing a lengthy period on the sidelines after sustaining a double stress fracture in his back in United's recent FA Cup third-round replay victory over Wolves.

But Rashford is confident he will return to action this season and aims to help United secure Champions League football for next term.

"I'll be back before the season ends to hopefully help my team claim a top-four spot," he wrote on Twitter in response to the Premier League's official account.

United are hopeful of signing a short-term replacement for Rashford this month with the striker expected to be out until at least March.