"AAA Tennis" - Still World Class

With all the hype surrounding the top tier events, it's easy to lose site of the extremely competitive Challenger tournaments taking place right now.  You have to be a knowledgeable tennis fan to comprehend just how tough the ATP tour is, in the sense that there are lower level Challenger and Futures tournaments going on right now, with players who could potentially go deep in Grand Slam draws.  The rule of thumb is that Challengers in America are the most competitive, or around the North American continent.  This week's Bermuda draw is extremely tough, a number of ATP tournament winners are in the field, proving just how competitive the list is (the highlighted names stood out the most, considering this is supposedly a "AAA minor league" event):

(1)Dudi Sela (ISR) d. Jan Vacek (CZE) 6-3 6-3
Kei Nishikori (JPN) d. Marcos Daniel (BRA) 2-6 6-4 6-1
Nicolas Massu (CHI) d. Daniel Kollerer (AUT) 1-6 6-3 6-4
(8)Ernests Gulbis (LAT) d. (WC)Alex Bogomolov (USA) 6-1 6-0
(4)Donald Young (USA) d. (WC)Greg Jones (AUS) 6-2 6-4
Pablo Cuevas (URU) d. Robby Ginepri (USA) 6-2 6-2
Wayne Odesnik (USA) d. (q)Noam Okun (ISR) 6-2 7-6(4)
(6)Peter Luczak (AUS) d. (WC)Peter Polansky (CAN) 6-3 2-6 6-3
(7)Marcel Granollers (ESP) d. Diego Hartfield (ARG) 6-3 6-2
Harel Levy (ISR) d. Mariano Puerta (ARG) 6-2 6-3
(q)Franco Skugor (CRO) d. (q)Scott Lipsky (USA) 6-3 6-2
Viktor Troicki (SRB) d. (3)Sergio Roitman (ARG) 3-6 6-2 6-2
(5)John Isner (USA) d. Paul Capdeville (CHI) 6-2 6-7(3) 6-4
Vince Spadea (USA) d. Andreas Haider-Maurer (AUT) 7-6(4) 6-1
(q)Nikita Kryvonos (USA) d. (LL)David Martin (USA) 7-6(8) 7-5   [Martin replaces Gaston Gaudio]
Carlos Berlocq (ARG) d. (2)Oscar Hernandez (ESP) 2-6 7-6(3) 3-0 ret.