Big upset in the USTA Challenger series event at Tunica National Wednesday.
Top Seed Donald Young is beaten by fellow American Scoville Jenkins in the Second Round.
The scores: 7-6, 6-4.
3rd seed American John Isner needs 3-sets to beat
Victor Estrella of the Dominican Republic
Scores there: 6-4, 4-6, 6-4.
The $50-thousand Dollar Tournament runs through Saturday at Tunica National Golf and Tennis Resort.