GENOA, Italy — Top-ranked Roger Federer has arrived in Italy to play for Switzerland in the Davis Cup.

The Swiss team had left Federer the option to decide on his plans after his loss to Juan Martin del Potro in Monday’s U.S. Open final, but both the Swiss and Italian teams said he arrived in the Italian city early Wednesday.
The World Group playoff begins Friday on the red clay courts at the Valletta Cambiaso club.
Stanislas Wawrinka, Stephane Bohli and Marco Chiudinelli are also on Switzerland’s team, while Italy will use Andreas Seppi, Simone Bolelli, Fabio Fognini and Potito Starace.
The winner of the best-of-five series will return to the World Group next year.