Berlin: German champions Bayern Munich yesterday splashed out a reported 73 million euros ($83 million) to launch their Champions League campaign for next season by signing Germany defender Mats Hummels and Portugal's Renato Sanches.

Sanches and Mat Hummels
Sanches and Mat Hummels

Centre-back Hummels, 27, becomes the third Dortmund star to join Bayern in three years after midfielder Mario Goetze in 2013, followed by Robert Lewandowski in 2014.

Sanches and Hummels have been given five-year contracts at Bayern, who were confirmed German champions for a record fourth season in a row last Saturday.

The double signings show Bayern's intent to win the Champions League title. Neither Dortmund nor Bayern said how much the Hummels transfer cost, but German media put the fee at 38 million euros. The Bavarian giants confirmed they paid 35 million, plus bonuses, for the 18-year-old Sanches.

Benfica said the fee could rise to 45 million euros. Hummels and Sanches will join the Bayern squad when Carlo Ancelotti replaces Manchester City-bound
Pep Guardiola for the 2016-17 campaign.