I expect this is just Twitter rumour bollocks.
I like Rule the Roost but Jack does quite often regurgitate whatever crap is going around on Twitter...which is now again being regurgitated on Twitter.
It's bullshit. They arent Spurs fans spouting this shit.
Besides, the bloke is obviously low on confidence and struggling. He's pretty inexperienced at this level too.
He's one of the last I'd be worried about.
