For example, a first wireless station may be configured to, during a first beamforming training with a second wireless station, communicate one or more first frames with the second wireless station via a first sectorized antenna of a plurality of sectorized antennas of the first wireless station, the first frames including a first Identifier (ID) of the first sectorized antenna, to communicate one or more beamformed transmissions with the second wireless station based on the first beamforming training; and to communicate a second frame with the second wireless station via a second sectorized antenna of the plurality of sectorized antennas of the first wireless station, the second frame to initiate a second beamforming training between the second sectorized antenna and the second wireless station, the second frame including a second ID of the second sectorized antenna.