Until then, both are aware that their main challenger rarely will be the length of a pole away.

His main challenger was Sewell, who beat him in a non-title confrontation.

His two main challengers refuse to accept the result.

Thatcher was not initially the obvious replacement, but she eventually became the main challenger, promising a fresh start.

He was the presumptive main challenger to Armstrong before the race started.

Seriously, who are the main challengers to England's No 1 spot.

In the days prior to the election some observers considered him the main challenger to Ravalomanana, the incumbent president.

Gotti was Rampolla's main challenger in the first four ballots.

Those, together with the Tysmenytsia men, were the main challengers for the gold by the end of the season.

Any horse who passes those two milestones with strength will become the main challenger from California.