Jessica Pegula saved five match points as she fought from 4-1 down in the final set to win the Berlin grass court WTA tournament, 6-7 (0-7), 6-4, 7-6 (7-3) over Anna Kalinskaya on Sunday. Pegula won the last five points as she prevailed after 2 hours 38 minutes of classy tennis in what was the first grass court final for both players which featured many twists. The fifth-ranked American failed to serve out the first set at 5-3 as Australian Open semi-finalist Kalinskaya fought back and wet a set up with a perfect tie-break. Pegula levelled the sets and rallied from 4-1 down to 4-4 in the decid…