DAVIS CUP: POWERFUL START FOR U.S. Isner, Querrey Serve Up A 2-0 Lead Over Belgium in World Group Quarterfinals By Junior Williams (April 6, 2018) NASHVILLE, Tenn. - John Isner and Sam Querrey blasted a combined 64 aces, winning their respective matches against Belgium to give the United States a commanding 2-0 lead in the Davis Cup World Group … [Read more...] about Davis Cup: Powerful Start for U. S. as Isner, Querrey Serve Up A 2-0 Lead Over Belgium in World Group Quarterfinals