definately send by PM, both players can do what they want without the other knowing
Sending the picks in PMs shouldn't be allowed except for the final pick only.
Each player can send their final pick to the manager in PM without knowing the final pick(s) of the other player(s).
The manager should capture the PMs & add their images in the thread after the match starts.
This situation should be allowed only for those players who compete for the title by their final picks.
I refuse the 'reversal pick' option at all. Each player should write their pick regardless to the others'.
This is my opinion.