Why did Phillies starter Aaron Nola exit game against Blue Jays early?

Aaron Nola exited with an injury. (Brendan Baldwin/Phillies Nation)PHILADELPHIA — Phillies starter Aaron Nola tried to tough it out after taking a line drive that came off the bat of Toronto’s Jesús Sánchez at 104.8 mph to the right knee, ricocheting off his left ankle. He crouched behind the mound. He tried to walk it off. But after a few warmup pitches that didn’t look to be at full speed, Nola handed the ball to interim manager Don Mattingly and headed to the