Another seeded player who is coming off the injury list to face a potentially troublesome first-round opponent is Gabriela Sabatini of Argentina.
They are persons who know the other one best, thus the most troublesome opponents to each.
Sampras said Martin, with his height and ball toss, can be a troublesome opponent.
He was also suggested as a suffragan bishop in the diocese of St David's, but the bishop Richard Rawlins, soon to be a troublesome opponent, rejected him.
Kasparov, a 32-year-old Russian, may well be starting to wonder how he is to knock off such a troublesome opponent.
Seles Closing In Capriati thinks Monica Seles, the 1991 Australian Open champion and 1990 French Open titlist, will prove the most troublesome opponent this year.
The president decreed a state of siege, for the Distrito Federal of (Rio de Janeiro and Niterói) in order to get rid of his most troublesome opponents.
However, both Jackson and Hart emerged as surprising, and troublesome, opponents.
The primary objective of the proponents of Euro-globalist and immigrationist ideology is to rid themselves of troublesome opponents by adopting repressive European criminal legislation.
Russia is a gangster state where troublesome political opponents, dissenters and journalists are simply murdered.