try out some barefoot jogging before/after your football matches. any soft (and clean) surface will do, but since you're already there this make sense. any barefoot jogging will help but I like what I call buildups--start jogging and move quickly to near-sprint speed, then slow it back down. nothing strenuous, but just enough to put your legs through all the paces.
shin splints are frequently a precursor to stress fracture--not that you're necessarily about the find a break, but you're stressing your musculoskeletal in a way that overloads and you haven't yet adapted to it. I'd guess your tendonitis is a similar matter.
Also, get some new shoes. If you can run around in cleats/boots but your running shoes cause pain, they're probably not the right shoes for you.
Cheers mate. Sounds good that, do buildups frequently prior to the matches so can see about trying your method out. Didn't realise about the stress fracture, I'm at the point now where I get the pain there even when walking fast so it's defo getting worse.
Paid big for a pair of Nike running shoes, not long back - will have to get myself a new pair.