The bolded part is what show you how dumb and ignorant some people on these boards are, same goes with any United legends in the media blabbering about selling Martial.
At 24 now he's about to start entering his prime. We've nurtured him, had faith in hi(at least since Ole's tenure), put him as our main man this season and from that he's gotten to mature into that position throughout his first consistent season.
He's clearly on the up and on the cusp of exploding, putting his all game together. Now imagine letting him go now and see him play somewhere else after he's put his game together and explode while we're the ones who nurtured him. Imagine sitting down, contemplating the possibility of one of your most talented player just about to hit prime go do that elsewhere after we've put all the effort these years to nurture him.
Some people on these boards are unfortunately that dumb. This season he's already putting almost 2 in 3 goals/assists numbers and is just getting the hang of mastering his prefer position and on the cusp of hitting his prime. Imagine letting that go. Some people on the Caf are that ridiculous