>at least 2020
Guessing there are some performance/match requirements there for automatic renewals. A case of worrying about longterm health (carrying something nasty we don't really know of?), thinking we have blokes coming through that could overtake him, or just a change in approach regarding contracts?
I would be happy to give him 2 years, given he's about to turn 26 and has plenty of good football left in him.
But at the same time, I reckon it's good to see the club being more cautious when giving out extensions.