#3 Supporting rival clubs' players
A friendly rivalry? Yeah right, most club fans can't stand seeing rival players line up against their team, and even when they do play for the national team the feelings of anger towards those players rarely dissipate.
For an Arsenal or Chelsea fan to cheer Dele Alli, or a Spurs fan to applaud Jack Wilshere, is done so with, at best, bitter resentment.
Most fans of clubs spend most weeks hoping their opposition players fail, so on the odd occasion when they lineup for the national team feelings do not exactly simmer all that much.
As much as club fans try to get behind their national sides the resentment at domestic level is always there, fans are more inclined towards their club sides as they watch them play 10 months out of 12, this creates a separation with the national team and a dissipated relationship with those who pull on the national shirt.