Obtaining catching help remains the Giants' top priority, according to Henry Schulman of the San Francisco Chronicle (Twitter links). One potential target is Brewers catcher George Kottaras, who is available according to Schulman.
However, 21-year-old prospect Hector Sanchez has a .310/.375/.448 line in eight games at Triple-A since the Giants promoted him all the way from Class A earlier this month, so GM Brian Sabean does have one internal option. Eli Whiteside, who has picked up most of the playing time since Buster Posey's home plate collision, hasn't hit much. He has a .190/.278/.291 line this year and backup Chris Stewart hasn't done any better.
Kottaras, 28, has been backing up for the first place Brewers. He has a .290/.324/.516 line in 34 plate appearances in support of everyday catcher Jonathan Lucroy this year. In 396 career plate appearances, Kottaras has a .220/.306/.405 line, which compares pretty well with the average MLB catcher in 2011 (.241/.314/.379).