Wiktionary
baseliner
n. (context tennis English) A player who plays from the baseline, seldom moving to the net.
Usage examples of "baseliner".
His style was essentially that of a baseliner, a coun-terpuncher, but without the return of serve or passing shots you need to stand much of a chance against a quality net-man.
The only other thing nearby was down on #10, a challenge in Girls' 14's, two baseliners sending parabolas back and forth: ponytails, an air of baseline attrition, the ball's high heavy arc that of a loogy spat for distance.