Tereza Vanišová scored a pair of goals in a 32-second span with just three-and-a-half minutes left and the Ottawa Charge stunned the Boston Fleet 2-1 on Saturday in St. Louis.

The win moves the Charge (10-11-1-4) into the fourth and final position for a playoff berth with four games left in the regular season.

Vanišová provided the go-ahead score with three minutes left poking in a loose puck at the net past Fleet (8-8-6-4) goalie Aerin Frankel who denied Ottawa for 56 minutes.

Vanišová knotted it at 1-1 off a Boston turnover in the Fleet end rifling a shot past Frankel with 3:32 left.

Vanišová leads Ottawa with 14 goals and has scored six in the last four games.

WATCH l Vanišová lifts Charge over Fleet for crucial win:

Vanišová leads Charge to crucial win over Fleet in St. Louis

Ottawa scored twice in the third period to steal a 2-1 victory over Boston Fleet Saturday, keeping the Charge's PWHL playoff hopes alive.

With a little more than four minutes left to play, Frankel turned away Gabbie Hughes with a sprawling kick save. Then, less than 15 seconds later, Frankel thwarted Danielle Serdachny with a glove save off a hard wrist shot.

Boston's Susanna Tapani intercepted a pass in Ottawa's end and scored unassisted on a wrister for the first goal of the game at the 8:25 mark of the first period. It was Tapani's 11th goal of the season.

A scoreless second period proved to be a function of outstanding goaltending turned in by Frankel and Ottawa's Gwenyth Philips who were previously teammates at Northeastern University.

Boston lost for just second time this season (7-2) after establishing a first-period lead.

It was Ottawa's first win of the season against Boston in five attempts. Four of the five games have been decided by a single goal.

WATCH l Full replay of Charge-Fleet game in St. Louis:

PWHL Hockey: Ottawa vs. Boston

Watch the Ottawa Charge take on Boston Fleet in PWHL action from St. Louis.