Question: What was the nickname of the winner of the Men's Singles title during the 1998 Wimbledon Championships?
Sentence (from "Petra Kvitová career statistics"): To date, Kvitová has won 20 singles titles including two Grand Slam singles titles at the Wimbledon Championships, one WTA Tour Championships singles title, two WTA Premier Mandatory singles titles and four WTA Premier 5 singles titles.
Relevant evidence: No