The San Antonio Spurs' bad week just got a whole lot worse.

Days after commissioner David Stern fined the team $250,000 for sitting its star players during a nationally televised game with the Miami Heat, a less-than-pleasant photo of Tim Duncan and Tony Parker has surfaced online that is sure to cause the organization another headache.

The image, which first appeared on Reddit, appears to have been taken on Halloween.

It shows Parker and Duncan, both in costume, pointing toy guns at the head of a man dressed as NBA referee Joey Crawford.

Crawford can be one of the league's more controversial referees, and once he even ejected Duncan from a game while the Spurs big man was on the bench. The league suspended Crawford for the incident.

Lightning appears to have struck the Spurs twice in the span of a few days, which is somewhat surprising for a team that has managed to avoid negative press during coach Gregg Popovich's tenure.

(H/T to Big Lead Sports)