After the match, Puel told BT Sport: "It's a good result because we played a very good team. If we cannot win a game it's important to take one point and I think it's important for the future.
"[There] was tactical problem for the team. [Hesketh is] a young player. It was a good experience for him but the pressure of the fans, of the opponents - it was very difficult. It was important to protect Jake."
Southampton remain at the top of Group K on the same points as second-placed Be'er Sheva, while Sparta Prague are third and Inter Milan sit bottom having lost their opening two games.