Several major contenders for next week's $1.5-million GI Belmont S. completed their final serious preparations Saturday morning. Hall of Famer Todd Pletcher seeks his fourth Belmont trophy, and sent out his pair of representatives, GII Wood Memorial S. winner Mo Donegal (Uncle Mo) and GI Longines Kentucky Oaks runner-up Nest (Curlin), to an in-company half in :49.90 (68/129) over the Belmont training track. Irad Ortiz, Jr. and Jose Ortiz, respectively, piloted the pair, who Pletcher caught breaking off in :24.80 and galloping out six furlongs in 1:14 and seven furlongs...