Valero, 29, has just one Spain cap but is considered to be one of the better midfielders in Europe, having been a roaring success in Spain and now in Italy, but the former Real Madrid man wasn't always seen this way after a disappointing spell in England with West Brom.
Having starred for Mallorca in their push for Champions League football, Valero was signed by Baggies boss Tony Mowbray for £5m, and was seen as the marquee signing at the Hawthorns. But after just 36 appearances, Valero was sent back to Spain, firstly on loan to Mallorca and then to Villarreal, who turned the deal into a permanent one after he was influential at El Madrigal.
His performances for 'the Yellow Submarine' generated interest from Barcelona, but it was Serie A side Fiorentina who pulled off a coup in 2012 after Villarreal were relegated, and it's no surprise to see that Valero has been superb under Vincenzo Montella for La Viola.
But as with any player, impressive performances lead to interest from elsewhere, and it was today reported that Manchester United boss David Moyes is looking to sign Valero in a bid to solve his chronic midfield crisis, where £27.5m flop Marouane Fellaini continues to underachieve.
It may be seen as a risk given Valero's poor stint in England six years ago, but he would've been the perfect player to face Bayern Munich in the Champions League. With a workmanlike attitude, pinpoint passing and composure in possession, Valero would've been a calming figure in front of the back four in Germany tonight and would certainly have given the Red Devils a better chance of progression.
It remains to be seen how much Fiorentina would want for Valero, but having rebuild his career in Spain and Italy, the 29-year-old deserves another chance in England and could prove to be a hit at Old Trafford.