All three players – a key trio for Mauricio Pochettino’s side – are in the final year of their contracts and could leave for free next summer unless they either sign a new deal in North London or are sold in the January transfer window.
Speculation was rife during the summer transfer window linking Eriksen with Real Madrid and the midfielder even admitted that he was thinking about seeking a new challenge.
Speaking to the Daily Mirror, Jenas said the failure to get the futures of any of the trio sorted by now shows “poor management”.
“It’s surprised me that they’ve let them get to the position that they are,” the pundit said. “I thought they would have at least secured one of them.
“We’re essentially going to lose them for free. It’s poor management. Altogether it’s culminated in poor performances and possibly them missing out on Champions League football this year.
“With regards to the club, they’re looking at about a quarter of a billion pound they’ll need to reinvest into the team to stand any chance of staying where they want to be if they let those three players walk out.”
Jenas also opened up on why he thought Eriksen didn’t end up leaving Tottenham in the summer, saying: “I think the club were happy to let him leave but they just didn’t get the figure that they wanted or Christian didn’t get the club that he wanted.
“If I was Eriksen and the bid didn’t come in that I wanted to come in, I would sit tight, I wouldn’t rush. Not only can I move for free in the summer, but that brings in Bayern Munich, Real Madrid, all the big hitters, Man Utd, even Liverpool.
“On top of that, you have the huge windfall of wages.”