Ole Gunnar Solskjaer warned he will face big challenge with Cristiano Ronaldo

Former Arsenal boss Arsene Wenger has warned Ole Gunnar Solskjaer his biggest challenge with Cristiano Ronaldo will be finding balance.

The 36-year-old rejoined Manchester United on Transfer Deadline Day from Juventus after telling the Serie A club he wanted to leave Turin.

Ronaldo first left United in 2009, when he joined Real Madrid for a then world-record fee, but he has now returned after 12-years away.

However, Wenger believes that the decision to bring Ronaldo back wasn’t completely rational, and he has warned Solskjaer about finding balance.

The former Arsenal boss suggested that the deal to bring back Ronaldo was because of an emotional connection.

“This is a love story that you want to see,” the 71-year-old told German-outlet BILD LIVE.

“[He was signed] for more than just sporting reasons, it’s also emotional. I think the decision is not 100% rational.

“Finding a balance in the team is a big challenge. But the players with a lot of experience still score a lot.”

Ronaldo’s signature came at the expense of a defensive midfielder, the position a lot of United fans thought should have been the top priority in the transfer window.

United now have a surplus of attackers, with Ronaldo and Jadon Sancho joining an already stacked frontline.

Wenger also revealed how close he came to signing Ronaldo as a youngster from Sporting Lisbon.

“He was at our training ground and even wore an Arsenal jersey. But we could only pay €4million (£3.4m) back then.

“[Sir Alex Ferguson] snatched him from me! And for €12m (£10.2m).”

Ronaldo famously moved to United after a friendly between Sporting and the Red Devils, with Sir Alex so enamoured by his talent he wanted him at all costs.

And it was reportedly Sir Alex that phoned Ronaldo ahead of his latest move back to United to convince him to join.

Ronaldo looks set to make his second debut against Newcastle United on September 11.