ELMONT, NY - After canceling Thursday's card at Belmont Park amid poor air quality issues, there is optimism that live racing will return with Friday's 11-race program featuring a trio of Grade I events. Pretty Mischievous (Into Mischief), last seen pulling off a dramatic 10-1 upset with first-time blinkers in the GI Kentucky Oaks, will take on seven rivals in the GI Acorn S. "She's doing great and hasn't missed a beat since she came out of the Oaks," trainer Brendan Walsh said. "This was the obvious next step for...