Reavis first played for the San Juan Knights in the Metropolitan Basketball Association in 2000.

After the Metropolitan Basketball Association folded in 2002, Reavis decided to apply for the 2002 PBA draft, where he was picked second overall by the Coca-Cola Tigers.

He had a good run during his time with the Tigers before being involved in one of the most controversial trades in PBA history.

The trade involved Rudy Hatfield, Billy Mamaril, Aries Dimaunahan, and Ervin Sotto.

Barangay Ginebra traded Reavis, Paul Artadi, and the rights to 2009 eighth pick overall Chris Timberlake for Enrico Villanueva, Rich Alvarez, Celino Cruz, and Paolo Bugia of Purefoods.