Porter even got the home-run ball, one of two he hit in his career.
Although he has a strong Oakland connection, trading Jed Lowrie to the A's had nothing to do with familiarity.
"The A's were not the only team interested in Jed Lowrie," Porter said. "When you look to see what we got in return, you know how much we thought of him. The A's offered us the best situation for us today and with a watchful eye on tomorrow. We got two guys who could impact the team."
All three players involved the trade were in the lineup Tuesday night: Lowrie at shortstop for the A's, Chris Carter as Houston's designated hitter and Brad Peacock as the Astros' starting pitcher.
Rick Eymer is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.