Complex sentence: During winter break 2007/2008 Rotan was transferred back to his home club to Dnipropetrovsk, the sum of the transfer is unknown, however he signed a 3 year contract with Dnipro.
Split into simpler sentences: During winter break 2007/2008 Rotan was transferred back to his home club of Dnipropetrovsk. However, he signed a 3 year contract with Dnipro.