Claim: Ivan Lendl has been ranked as the world's top tennis player.
Evidence: Ivan Lendl -LRB- -LSB- ˈɪvan ˈlɛndl̩ -RSB- ; born March 7 , 1960 -RRB- is a former world No. 1 professional tennis player and is currently coaching current world No. 1 Andy Murray , alongside Jamie Delgado.