Despite the title, Porky Pig only is seen at the beginning and end of the cartoon. Otherwise, it's a Daffy Duck cartoon...back when Daffy was certifiable and much more frenetic than in later films.
When the story begins, Daffy's boxing manager, Porky, reads that the champ is offering a lot of money to anyone who can stay in the ring with him. So, he arranges for a match with Daffy and things get pretty goofy.
The introduction of Daffy Duck into Looney Tunes cartoons in the late 1930s was a great thing as up until then, the cartoons were looking for an identity and edginess...something sorely lacking in earlier productions. But this Daddy was MUCH less subtle or subdued compared to the 1940s-50s Daffy...and that is welcome when you see these films today. The score of 9 is relative to other cartoons of the day...and this one is a lot of silly fun.