Bangladesh physio Bayjedul Islam Khan confirmed that the 36-year-old batter will require at least three weeks to recover from the injury, ruling him out of the Test series, which will commence on 22 March.
“After the match, Mushfiqur [Rahim] underwent an X-ray examination in Dhaka, which revealed an avulsion fracture on the MIP joint of his right thumb,” Bayjedul said.
“He is currently undergoing conservative management for his injury and is expected to be sidelined for around three to four weeks, consequently ruling him out of participation in the Test series against Sri Lanka.”
Rahim suffered the injury during the third ODI against Sri Lanka as he was struck by a delivery from Taskin Ahmed in the second over.
He continued to keep wickets after getting treatment from the team physio, taking four crucial catches. He later played an unbeaten 37-run knock to help Bangladesh chase 236 runs to clinch the ODI series 2-1.
He was the second-highest run-getter for Bangladesh in the ODI series with 135 runs from three innings.
He is also the most-capped Test player in Bangladesh history with 88 Test matches and has scored the most runs for the country – 5676 runs at an average of 38.09.
The Bangladesh selectors have not announced the replacement for the veteran wicketkeeper yet.
Bangladesh lost the T20I series against Sri Lanka 2-1 but made a resounding comeback to win the ODI series with the same margin.