Wilson has introduced the dampening material Countervail in all their product lines (Burn, Ultra, Blade) except for the Pro Staff. Now it’s time for most legendary line to get an update. The Wilson Pro Staff line has a long and legendary heritage with players such as Pete Sampras, Jim Courier and Stefan Edberg using the racquets and current ambassadors being Roger Federer, Grigor Dimitrov and Roberto Bautista Agut to name a few. What racquets will be released then and will the super popular Wilson Pro Staff RF 97 Autograph suddenly include Countervail? First of all, a Wilson Pro Staff 97 …
