Stadium Fires Mystery (8 replies)

A delibately lit fire at Exeter City FC [www.bbc.co.uk] has now postponed the next fixture, oddly a few days later a fire was delibrately lit outside local rivals Plymouth Argyle [www.bbc.co.uk]
A huge coincidence or is there more to this?
Is this some kind of local rival skirmish which has esculated into criminal damage or do we have an arsonist travelling around to delibrately target football grounds.