A sculpture of an ox outside Oxford United's football ground has been covered in pink paint.
The £25,000 artwork was attacked by vandals over the weekend. The words "gotta love art" have been painted underneath.
The sculpture was put into place outside the Kassam Stadium in 2008, after three years of planning.
Police are looking at CCTV footage and asking for the public's help to try to find out who was to blame.