Former Manchester City man has been linked with a move to one of the Spanish giants.
The report in Marca also states that Real Madrid have declared an interest in his services, with the asking price from Bayern Munich thought to be around €39million.
Barcelona want a permanent centre-half option to replace the retired Carlos Puyol, while Madrid’s interest is a little more surprising considering their options in defence.
The European Champions have Sergio Ramos, Pepe, Raphael Varane and Nacho as centre-half options, but could still swoop for Boateng.
The 25-year-old may offer a solution for Barcelona, who have struggled in their pursuit of a defender this summer. The Catalan giants have been linked with the likes of Thiago Silva and Mats Hummels, but seem no closer to pulling off any of those deals.
Boateng left Manchester City three years ago after becoming an outcast under then boss Roberto Mancini, but has gone on to become a quality centre-half at Bayern Munich. He has gone on to win multiple Bundesliga titles and a Champions League, while this summer also saw him lift the World Cup with Germany.
His performances, and accolades to match, have now seen him become hot property in the transfer market, and rightly so. Boateng is a strong, disciplined defender who also carries threat in the opposition penalty area.
Real Madrid don’t really need him, although it wouldn’t harm them to dispose of the fiery Pepe and sign Boateng as a replacement for the European Champions.
It is unlikely to result in a tug of war between the two Spanish heavyweights, but should one of them land Boateng they will have made an instant improvement at the back.