Sarll’s side were heading for another away defeat when defender Franks produced a wonderful finish with a volley from the edge of the box that gave Boro a point they fully deserved.
The Boro boss said: “I thought we dominated the game especially the second half and I’m actually disappointed we didn’t win the game.
“I thought we dominated the ball but looked set to come away with nothing so I just thought we would try something different by throwing Fraser on and thankfully it paid off.
“It was a great goal from a great lad who has been very patient after not getting many games lately but he showed a moment of magic and got his just rewards.
“We had a lot of the play but I wanted us to be a bit more vigorous going forward and Fraser showed that vigour and got us the point. He’s very reliable and will contest for everything and it was great to see him score such an important goal to give us the point we deserved.”
Morecambe boss Jim Bentley admitted his side were far from their best but said the draw was a huge blow as his side looked set for a third successive win.
He said: “To be honest it feels like a defeat.
“When you are winning 1-0 at home after 89 minutes you are always disappointed not to pick up three points but sometimes you have to hold your hand up and credit to Fraser Franks for his moment of skill.
“They had a lot of the ball and but they didn’t create too many chances and Barry Roche didn’t have a great deal to do.
“Despite that we had the clearer chances with Steven Old going close and Kevin Ellison almost getting in late on.
“We weren’t great and we gave the ball away at times but it was one of those games where you just wanted the final whistle to go and shake hands on a hard fought 1-0 win but it wasn’t to be.”
Pivotal game in Group E almost a pick ‘em with the bookies