Contrasting half centuries by Shai Hope and Shimron Hetmyer have propelled the West Indies to 321 against Bangladesh in their crucial World Cup clash in Taunton.
Hope anchored the innings with a diligent 96, setting the platform for a Caribbean onslaught down the middle of the innings led by a scintillating 26-ball 50 by Hetmyer.
Mustafizur Rahman and Mohammad Saifuddin picked up three wickets apiece for the Tigers but were both expensive in their respective spells.
Earlier, Bangladesh won the toss and elected to field first, making one change to their line-up with Liton Das replacing Mohammad Mithun
For the Caribbeans, left-handed batsmen Darren Bravo replaced Carlos Brathwaite.
Bangladesh are aiming to snap a two-game losing run after a remarkable start to their campaign with a comfortable win against South Africa.
Bangladesh XI: Tamim Iqbal, Soumya Sarkar, Shakib Al Hasan, Mushfiqur Rahim (wk), Liton Das, Mahmudullah, Mosaddek Hossain, Mohammad Saifuddin, Mehidy Hasan, Mashrafe Mortaza (c), Mustafizur Rahman
West Indies XI: Chris Gayle, Evin Lewis, Shai Hope (wk), Darren Bravo, Nicholas Pooran, Shimron Hetmyer, Jason Holder (c), Andre Russell, Sheldon Cottrell, Oshane Thomas, Shannon Gabriel