BOSTON -- The Chicago Blackhawks have played a lot of extra hockey lately. They played some more Wednesday night while essentially using five defensemen.

Nick Leddy took four shifts in Game 4 of the 2013 Stanley Cup Final, logging a total of 2:37 of ice time in a 6-5 overtime victory against the Boston Bruins that evened the best-of-7 series at two wins each. Three of the four games have gone to overtime.

"Nick is fine," Chicago coach Joel Quenneville said when asked if Leddy was OK.

Leddy took one shift in the first period and two in the first nine minutes of the second. He did not play again until a 12-second shift early in overtime.

There were no obvious mistakes by Leddy during his brief time on the ice. He did actually make one great play, a long diagonal outlet pass that sprung Patrick Sharp for a breakaway attempt shortly before Patrick Kane made it 3-1 in the second period.

It was the only shot on goal at either end of the ice while Leddy was on the ice.

The lack of playing time for Leddy left more minutes for the other Chicago defensemen. Duncan Keith finished with 32:37, the fourth time in the past five games he has played more than 32 minutes.