Forster recently recovered from a serious knee ligament injury but since his return to the side in the last three games, the Saints have yet to concede a goal, and have made it three wins from three.
Davis is quoted in the Southern Daily Echo, saying: “First of all, I was delighted for Fraser to be back playing football.
“Adding on to that, the fact that he comes back in and we win three on the spin with three clean sheets. It can’t be a coincidence.
“I’m really pleased for him. I think a lot of him. I was very disappointed when he got injured because he was certainly showing signs then of what he can do for this football club over the next ten years."
Tonight they face a trip to title chasing Arsenal in the Premier League - who they emphatically defeated on Boxing Day - and it will be an evening where the side need to be at their best as the Gunners look to get their title challenge back on track.
It will be interesting to see if the Saints can keep this form going as they have looked a more solid unit at the back in recent weeks, while at the other end of the field they seem to have the firepower that can trouble whoever they come up against.
In many ways, the game is more about Arsenal as they look to put the demons of their humiliation at St Mary's to rest.
The return of Forster for Saints seems to be something that can measured over the medium term as to just how much of an effect he has on the side. But look at the side prior to his injury, and now, it seems that they have a very good goalkeeper as their last line of defence.