Petty was a 16th round draft pick of the San Diego Chargers in the 1973 NFL college draft.
| Team | Year | GP | Rec | Yds | Avg | Long | TD |
|---|---|---|---|---|---|---|---|
| MON | 1975 | 16 | 30 | 575 | 19.2 | 73 | 0 |
| MON | 1976 | 5 | 5 | 126 | 25.2 | 51 | 0 |
| MON | 1977 | 6 | 6 | 101 | 16.8 | 24 | 0 |
| Year | Team | F | FL | OFR |
|---|---|---|---|---|
| 1975 | MON | 0 | 0 | 1 |
| 1976 | MON | 0 | 0 | 0 |
| 1977 | MON | 0 | 0 | 1 |