It's a bittersweet Mamba Day for Boston Celtics point guard Kyrie Irving, who won't be able to suit up for the playoffs, but still made time to celebrate one of his basketball heroes.

Earlier today, Irving took to Instagram to reveal an alternate red-based version of the "Bruce Lee" (or "Mamba Mentality") Nike Kyrie 3. Red and yellow essentially switch roles on this pair, with a speckle print added to the midsole for extra flavor. Both shoes were inspired by Kobe Bryant's "Bruce Lee" Nike Zoom Kobe 5, a tribute to the legendary martial artist and actor.

As of now, it doesn't look like this variation will be in stores anytime soon.