After withdrawing from Miami with a shoulder injury, Tommy Haas will also miss Davis Cup action.
"I have tried until the last moment to be able to play in Miami, but the doctors strongly advised me to take a break to recover the shoulder," Haas was quoted as saying by German press.
"In my current state, I cannot help the German team, unfortunately," he added.
Germany takes on France in the quarterfinals.
After losing to Roger Federer at Indian Wells, Haas said about the injury, "It starts to annoy me again a bit during the day and during sleep. From the past, I know this is not a good sign."
The 35-year-old also had to retire during the Australian Open and Sau Paulo earlier this year with the problem. Haas has twice had shoulder injuries requiring surgery.