Although his name is not well known today, Doeg in his heyday often was considered among the premier servers in tennis history:
Don Budge in his book
Budge on Tennis later stated the same sentiment: Budge, however, was careful to note the shortcomings of the rest of Doeg's game. In his 1969 memoir Budge observes "John never achieved the greatest stature in the sport because many facets of his game, his ground strokes, for instance, were somewhat lacking," then proclaimed Doeg "one of the most effective servers of all time": ==Grand Slam finals==