VIDEO : Could Scarlett Johansson's Latest Training Session Reveal 'Inifinity Wars' Details?

A photo of Scarlett Johansson and Sebastian Stan after a training session has emerged online, and as usual, the internet is ablaze with hypotheses about 'Avengers: Infinity War'.
In the ever-expanding Marvel Cinematic Universe, Johansson plays Natasha Romanoff (also known as Black Widow), while Stan plays Bucky Barnes (also known as the Winter Solider).
A photo was posted by trainer Don Saladino on his official Instagram account showing both Johansson and Stan in workout gear, but its accompanying caption did not reveal anything significant about session and did not even reference Infinity War at all.
Fans are speculating, however, that the appearance could mean an action scene between the two in the upcoming film.