ST. LOUIS — For the first time in more than a month, the Blues have lost consecutive games. By losing 4-2 to the Maple Leafs on Monday afternoon at Enterprise Center, the Blues have now lost three of their last four games. The last time they lost back-to-back games was during a three-game losing streak from Jan. 13-18 against Boston, Philadelphia and Washington. Matthew Knies, Auston Matthews (power play), William Nylander (shorthanded) and Bobby McMann (empty-net) scored for the Maple Leafs. Brandon Saad (power-play) and Torey Krug (6 on 5) scored goals for the Blues. Knies opened the scoring…