By Jonathan Lee
Al Horford entered the NBA as an undersized center, and has  developed into a two time All-Star and made the All-NBA Third team last  season.  Now the Hawks will likely be  without their star player for the rest of the season as Horford torn his left  pectoral muscle Wednesday night.  The  typical recovery time for such an injury is at least three months.
 
With Horford, the Hawks were projected for 37.7 wins and  were 83 percent likely to make the playoffs.   Without Horford, the Hawks are projected for 34 wins and make the  playoffs 64.7 percent of the time.  That  means the forward was worth nearly 4 full wins and 18.3 percentage points in  playoff probability.
 | 
Projected Wins | 
Division % | 
Playoff % | 
| w/ Horford | 
37.7 | 
11.6% | 
83% | 
| w/o Horford | 
34.0 | 
4.7% | 
64.7% | 
| Difference | 
-3.7 | 
-6.9% | 
-18.3% |