Not only today, but the Phillies continue with games every day for some time.
Neris does a good job. The single was a ground ball that Segura dove to stop (nice play, it looked like it was past him) but couldn't get throw to first in time.
Remember when catchers moved their body to block outside pitches in the dirt? Knapp just sticks his glove out and misses the ball, allowing the runner to move to second. Luckily, Neris got Ks to end the inning.