Of course,  Mamedyarov can play anything, but the Open Spanish is not among his  regular choices. Usually, it's the Steinitz with g7-g5!
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. e1g1 