Oral title: Testing giant planet predictions in the transitional disk of SAO206462 using deep VLT/SPHERE imaging Oral abstract: The SAO206462 disk is one of the few known transitional disks showing asymmetric features in scattered light and thermal emission. Giant planets in formation were suggested for accounting for the disk features. We present deep SPHERE images of the disk. The spiral arms and the inner ring are revealed without the need for image post-processing. We also place deep constraints on putative planets.