John Isner is set to return from a knee injury and will play the No. 1 singles spot for the United States against Brazil in the first round of Davis Cup World Group matches.
Isner injured his knee a month ago at the Hopman Cup in Perth, Australia, while playing with Venus Williams. He withdrew in his opening match the following week at the APIA International Sydney and hasn't played competitively since.
He said he's ready to return to the courts.
He will meet Brazil's Thiago Alves, ranked No. 145 in the second singles match on Friday. The opening match pits the United States' Sam Querrey (No. 22) taking on Brazil's top player, Thomaz Bellucci (No. 33). It's the first meeting for the players in both matches.