Shai Khe was a relentless and merciless opponent.

For the first time there had stood against us a brave and relentless opponent on a battleground which favoured him.

You were strong, sharp and focused against a relentless opponent, boxing rather than brawling.

The ninth-ranked Williams did not play poorly in the 70-minute match against Sharapova, who proved to be a relentless opponent.

But those were not the reasons he lost badly in a match with a relentless, younger opponent.

Since he had never come face to face with a relentless opponent or fought a real war, such easy presumption had served him well enough.

He seems to be a pretty relentless opponent of the kind of standards that we've tried to have here.

He wrapped his arms around Wulfgar's waist and tried again to twist his relentless opponent to the ground.

Norg knew it and was his most relentless opponent.

Even as teacher, the Gaul made a relentless opponent.