Davis opened the scoring as Saints beat their south-coast rivals 2-0 at St Mary’s to move up to seventh in the Premier League.
Pelle added the second just five minutes after Davis’ opener —powerfully heading home Dusan Tadic’s cross in his now-trademark style.
The Italian has been playing well of late and, having already been praised by manager Ronald Koeman after the victory, Davis has added to the plaudits.
“I think he plays a vital role,” Davis said of the 30-year-old striker. “I think everybody knows we like to try and play football, but he also gives us that outlet if we want to go a little bit more direct and he can cause teams problems.
“We can play off him and he’s probably one of the best in the league in terms of doing that, so he’s been magnificent for us. Obviously, the goals that he’s scored as well, you can see he’s playing full of confidence.”
Davis has now netted four goals in his last seven games for club and country having failed to register a single goal in the whole of last season.
“It’s nice to see the ball hitting the back of the net,” he said. “I think I just always try to get into the positions, but it was a great team goal. The first one I think the boys worked it really well and it was a great ball in from Ryan Bertrand and nice to get on the end of it.
“I just have to keep on trying to get into those positions.”