According to Adam Berry on MLB.com, the Pittsburgh Pirates have expressed interest in free agent first baseman Mike Napoli. Berry also quotes Neal Huntington as saying the Pirates are "open to just about anything and everything" when looking into first baseman at this point.
With Michael Morse as their best option now at first base, the Pirates would like to add someone either to start ahead of him, or to complement him, which would likely mean a lefty bat. We have heard rumors about Napoli and the Pirates in the past as well, so it's no surprise that his name has popped up again, even though he is a right-handed hitter.