An interesting pawn sacrifice which Black rejects.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. d2d4 Carlsen is tired of the Berlin. 3... e5d4  4. f3d4  4... f8c5  5. d4c6  5... d8f6  6. d1f3  6... d7c6  7. b1c3  7... c8e6  8. c1e3  8... c5b4 