Oct 8 (Reuters) - Landon Donovan, the U.S. national team's all-time leading goal scorer, was named to the 24-man squad on Monday for the upcoming CONCACAF region World Cup qualifiers despite an injury worry. Donovan missed the September qualifiers against Jamaica due to injury and his involvement in the two decisive games in the penultimate phase of qualifying for the 2014 World Cup in Brazil may be in jeopardy after suffering another setback on Saturday. ... More...