If you look at the United squad, half of those guys were bought for around 18 million pounds. All of those guys, bar Valancia, are definitely inferior to Kagawa, and certainly all are eclipsed by Hazard. If United are in for either man, expect them to be willing to pay Rooney / Berbatov money to get it done. Same with the Spanish giants and Citeh. 15m for Kagawa would be an absolute bargain, and Dortmund must know that. He's probably ahead of Gotze now, and Dortmund were reportedly rejecting £35m bids for the German.