 In 2010 , for the first time in his career , Whiteside made an MLB team out of spring training . He served as Sánchez 's personal catcher for much of the season , catching 19 of his starts . Following Molina 's trade to the Texas Rangers on June 30 , Whiteside saw his playing time reduced as Buster Posey caught more and more games ; Whiteside would only start six of the Giants ' final 57 games . He finished the regular season with a .238 batting average , appearing in 73 games . Though Whiteside did not appear in any playoff games , he was on the team 's roster throughout the playoffs , earning his first career championship title after the Giants won the series against the Rangers . 
