Should I replace this radiator pipe?

[gb17342]

This radiator pipe got stepped on and now has a kink, if you can see in the pics. Should I get it cut back and a new bit soldered on or will it be alright as is? It's not leaking but presume it's going to restrict the flow, does that matter..? It's the pipe with the return valve it's not the thermostatic valve. Also how do I know if it's 8mm or 10mm? Any advice would be much appreciated thanks.

 

[ShaunCorbs]

Replace defo

 

[gb17342]

Replace defo

Ok thanks Shaun will do