Best - we dug ourselves out of a hole
Rory Best said Ulster had to dig deep to win in Castres after some first-half struggles.
Three Ruan Pienaar penalties proved enough to earn Ulster's first ever Heineken Cup win in France as they edged a 9-8 victory.
"Our scrum fired well in the first half but our line-out was way off. I think it's important we don't underestimate the character it took from the whole pack of forwards to sort that out in the second half," said Best.