According to the interview on BBC website,
http://www.bbc.co.uk/sport/0/football/30303169
Di Maria will not play at Southampton
Rooney - doubtful, but decision will be made after a scan.
Falcao. As usual people are putting his name in the starting line-up, but havent worked out the guy has not yet recovered from his career threatening injury.
I realise the excitement, but we have to be realistic. He will be brought back very slowly/gradually. Even the slightest twinge - and LvG will give him an extensive rest.
This rehabilitation and recovery must be done slowly. This is quite normal with the knee ligament injury.
My guess is that we will see him play 80+ minutes, sometime in January, but not before.
But hey - only time will tell.