Each week STACK scours the Instagram accounts of the world's best athletes to bring their most interesting posts to you. This week, the Atlanta Hawks host a wheelchair basketball clinic, Sio Moore and Co. take out some jet skis, and Jim Harbaugh faces off against a walrus.
15) Antonio Smith
Caption: Love this kid's sense of humor like mine.
14) Al Horford
Caption: Wheelchair basketball clinic here at the Arena. #Hawks
13) Antonio Brown
Caption: Drive ! @jumpman23 sneak peek on push press today !!!
12) Julio Jones
Caption: Acting up at #visa photo shoot
11) Sio Moore
Caption: When you can do things you never imagine #Blessed @jjwilcox_19 @king8jamie
10) Ty Lawson
Caption: #smurfgang t-shirt line coming soon what y'all think
9) Earl Thomas
Caption: Had a great workout with my teammates ...#hookem #UT #love
8) Marcelo Vieira
Caption: Feliz dia de los padres !!!!
7) Chad Johnson
Caption: Cinco Muscle Ups‼️
6) Al Jefferson
Caption: #TBT "Al Jefferson was surrounded by family members when he was taken by the Celtics in the 2004 draft." From today's @SportsIllustrated article titled "Al Jefferson, a low-post whiz, brings sunshine to Charlotte." Visit bobcats.com for the link to the article!
5) Nate Robinson
Caption: #stateofnate @teejayregan #enoughsaid #holdat
4) Jim Harbaugh
Caption: Push-Up Contest. Jim Harbaugh vs. Walrus. #NFLOffseason
3) Chandler Parsons
Caption: Cool little bike ride with the squad!
2) Thiago Silva
Caption: Amigos são como o vento as vezes perto , outras vezes longe +eterno em nossos corações !!!! @neymarjr
1) Udonis Haslem
Caption: S/O to my brother @kingjames for these custom made WWE championship belts. It was WWF back in my day and Junk Yard Dog was da realist. Lol. On the floor or off We Fight! #heatles #3xChamp #back2back
Photo Credit: Getty Images // Thinkstock