The red box indicates that the line is circled and has reduced betting limits.
The line can be circled when other factors than game play are involved. e.g., injuries or weather conditions may potentially impact the final outcome of the game.
There isnt enough information to book the game and bookmakers cant balance betting on both sides. With that you cannot add a circled game to your parlay.
To attempt to balance trade on all games and protect their bottom line,most sportsbook business models are set.
For many sportsbooks it is important to have their lines un-circled. Closer to the start of the game, the red box may be removed.
Pay a visit to http://NBAPicks.us for sports betting information
