Sheikh Mansour Bin Zayed Al Nahyan, owner of Manchester City Football Club, has added to his position in Barclays.

Shrugging off the bank's recent troubles surrounding Libor manipulation, energy trading claims and a fine from the Spanish regulator over structured bond sales, Sheikh Mansour took his position in Barclays above the 7% mark, according to a stock market filing published late last night.

The transaction was logged as an 'acquisition of instruments' and left the Sheikh with an indirect Barclays holding of just over 6.1% and voting rights slightly above 7%.

Like the Sheikh's football side - which earlier this year lifted its first Premier League title in 44 years - Barclays shares have begun to return to form despite the bank's difficulties earlier this year.

Shares in the bank crashed 17% shortly after it was hit with a record £290 million fine for fixing Libor and the bank continued to trade sub-200p in the weeks that followed as senior executives left amid the scandal.

On Monday, however, the bank closed up 0.51% at 256.9p, a long way off its 148.2p 52-week low.