United States captain Tyler Adams will miss Bournemouth's home Premier League game against Manchester United on Saturday.

Adams was absent from a 2-1 defeat at Luton last weekend because of back spasms but Bournemouth manager Andoni Iraola was optimistic that the midfielder would soon be back in action.

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"Tyler is improving. He is out definitely tomorrow [Saturday] but it is a muscle thing," Iraola told a news conference Friday. "I think he can continue this improvement and he can be available next week."

Adams had played two club matches, on March 13 and 30, after returning from a hamstring injury that had limited him to one game during the previous 12 months. He also scored for the U.S. in the team's Concacaf Nations League final win over Mexico on March 24.

Bournemouth are 12th in the standings, eight points behind sixth-place United.

The Cherries hope to complete the double over United after winning 3-0 at Old Trafford in December.

Information from The Associated Press contributed to this report.