Federer skipped Switzerland's defeat by the Netherlands in March but is likely to feature in the home tie against a British side that will have to make do without leading player Tim Henman, who has retired from Davis Cup duty.

Federer said he would keep his options open for later matches in the men's team competition as long as they fit in with his schedule and a home tie against the British after all four 2005 grand slam tournaments have been completed is likely to suit him.

Britain, who squeezed past Israel 3-2 in a Euro/Africa zonal match in March, will be underdogs for the trip to Switzerland.