Brooks Koepka won the US Open in 2017 and 2018
Four-time major winner Brooks Koepka has pulled from next week's US Open due to injury.
The 30-year-old American started 2020 as number one in the world, but has dropped to eighth in the ranking with hip and knee problems. season.
Koepka hasn't played since missing the cut at the Wyndham Championship in August.
"I look forward to 100% competing healthy and fast again," he wrote on Twitter.
This year's US Open will take place at Winged Foot Golf Club in New York.
Koepka won the tournament in 2017 and 2018, and the US PGA Championship in 2018 and 2019.