That just means that they are due for an injury.
Why did you go back two years for every player but Rivers, would that just skew your numbers.
Probably because I complained loud and long about Rivers being played in late 2013 when he didn't look fit enough.
Interesting logic, is Taylor due for an injury then?
Either way, the point is our backline - especially the tall defenders - are close to our most durable players. They absolutely might get an injury or two. But if they're fit they'll all be playing. Same argument as for Clark and Stanley and McIntosh and Vardy and Walker and Kersten - you can't play everyone.