Diamondbacks' A.J. Pollock serves as warning before team photos

The Arizona Diamondbacks held team photo sessions on Sunday, and to make sure all the players understood what was at stake the team posted a warning in the form of A.J. Pollock's image from the 2014 season.

The Arizona Diamondbacks held team photo sessions on Sunday, and to make sure all the players understood what was at stake the team posted a warning in the form of A.J. Pollock's image from the 2014 season

Everyone must be very serious for tomorrow's team photo day. pic.twitter.com/ABVDiLK9oy

— Kevin Zimmerman (@KZimmermanAZ) February 28, 2015

• Blue Jays sign Dayan Viciedo to minor-league deal

It seems the centerfielder was feeling a little glum last spring when picture day came along, which led to media outlets receiving the hangdog photo above.

It seems Pollock got the message as he looked a little more upbeat this year, while still falling far short of ecstatic.

Rob Tringali/Getty Images

[Fox Sports]

- Brendan Maloy