Ryan Liam Morgan, 14, from Morecambe, died on April 20 after the Peugeot van which his father was driving crashed into a tree between junctions 34 and 33 southbound near to University Hill.
Blake, 37, was seen jumping into the air when the Welsh team's goals went in to seal their 3-0 win over Charlton Athletic as she watched from the stand with Ryan and his co-owner, Rob McElhenny.
Ryan Reynolds broke his silence on his wife Blake Lively's blistering TIME100 gala speech in which she alluded to her legal battle with Justin Baldoni.