A solution :
Make a copy from the original photo
Make a new transparent layer and draw a big grey line on it (use brush 2. Hardness 050) in the direction / area of the haze (I used grey HTML notation aaaaaa)
Make a quick mask from the players (Shift+Q) using the original copied layer, Shift+Q to convert in a selection
Set this layer not visible
Set the layer with the grey line active, invert the selection and press delete to erase the grey area around the players
Then, ' Select / None' and Gaussian Blur the result a little (value 2) and set the layer mode 'Burn'. Tune a little using the layer opacity.
Grey layer after mask / selection /blur
Result with selection to compare :
Make a copy from the original photo
Make a new transparent layer and draw a big grey line on it (use brush 2. Hardness 050) in the direction / area of the haze (I used grey HTML notation aaaaaa)
Make a quick mask from the players (Shift+Q) using the original copied layer, Shift+Q to convert in a selection
Set this layer not visible
Set the layer with the grey line active, invert the selection and press delete to erase the grey area around the players
Then, ' Select / None' and Gaussian Blur the result a little (value 2) and set the layer mode 'Burn'. Tune a little using the layer opacity.
Grey layer after mask / selection /blur
Result with selection to compare :