It's not about the money
It's a very smart move cause he will get more money
Ok then
You really struggle to understand don't you? Is that because you actually don't get it or because it just doesnt suit your purpose
I'll make it really easy for you
What Martin did last time is exactly the same thing Cotchin did with his contract leading up to FA.
Cotchin signed a 2 year deal to strengthen his position leading up to being a FA, club offered him 4 years he turned it down. and then guess what happened? before becoming said FA he signed the 5 year deal he is currently on. For a lot more $$$ because he had strengthened his market position
So you see it happens all the time, a lot of players do it
You might not like it, might not get it but it is the way it works