Resized to 53% of original (view original)
Artist's commentary
Hayasaka (left) and Hoshi (middle) about to slap stretching Morikubo's (right) butt
The outfits are out of my imagination, except for Morikubo's.
Original → https://www.nikkansports.com/baseball/photonews/photonews_nsInc_201910030000806-2.html