Lionel Messi has delivered on his promise to send Stephen Curry his number 10 Barcelona jersey after the Golden State Warriors star reached 10 million followers on Instagram.

In December, Messi received a Warriors jersey from reigning NBA MVP Curry when he reached 30 million followers on the social media photo-sharing service.

Messi vowed to return the favour when Curry made it to 10 million on his official account and Barcelona's all-time leading goalscorer did not disappoint, fulfilling his pledge.

"Hey 'maestro' as promised, here is my number 10 jersey I'm sending over you," Messi said in a video uploaded via his official Instagram page.

"It's an honour for me to be able to share my jersey with you and it's always a pleasure to see you play.

"I hope to see you play for many more years to come and I wish you all the success possible. Big hugs."

The jersey will offer Curry some comfort as he sweats on the results of an MRI scan after straining his knee against the Houston Rockets on Sunday.

Curry did not play in the second half as defending NBA champions the Warriors defeated the Rockets 121-94 for a 3-1 series lead in the Western Conference first-round play-off.