Mr. Walker's critics scoffed at the explanation, saying his forces simply did not have a viable challenge to make.
Neither group has proved to be cohesive or effective enough to present a viable challenge to the power of the Syrian government.
But even the Peyrons' star power was not enough to generate the financing from home necessary to mount a viable challenge for the 34th Cup.
But even the Peyrons' star power was not enough to generate the funding from home necessary to launch a viable challenge for the 34th Cup.
Analysts have said that although Rifaat al-Assad lacks the support of the army and security services necessary to take over the presidency, he still poses a viable challenge.
Mr. McCall went down in defeat after running a campaign that failed to raise enough money to mount a viable challenge to Mr. Pataki and could not hold onto the traditional Democratic base.
Former Prime Minister Silvio Berlusconi said Tuesday that he would not seek re-election next spring in order to regroup the center-right, regain disaffected voters and pose a viable challenge to the center-left, which is leading in opinion polls.
That looks mission impossible as long as Serena is around, while the Belgians, who played each other in the French Open final, were rather brutally seen off here and may be hard-pressed to offer a viable challenge at next month's US Open, assuming Venus's injury has healed.
Justine Henin-Hardenne, who won her third French Open title on Saturday and fifth grand slam championship in total, placing her level with Venus Williams and Martina Hingis, has repeatedly been too exhausted, mentally and physically, to sustain a viable challenge at Wimbledon, even though it was the first grand slam final she reached in 2001.
The new service presents a viable challenge to Amazon's Appstore and its time-limited "free app of the day" by offering an entire catalog of premium Android applications for free.
