Ben Keating isn't piling extra pressure on his team to repeat as GT Daytona class winners in Saturday's Mobil 1 Twelve Hours of Sebring.Keating and Jeroen Bleekemolen return in the No. 33 Team Riley Motorsports Mercedes-AMG GT3 that won last year's event. Luca Stolz completes the line-up, replacing 2017 winner...