The European Tour has reminded players that they face disciplinary action for breaching social media rules after James Morrison of England recently criticized the Wales Open in an online post.

The European Tour says sanctions will apply for any "offensive, threatening, disparaging, hurtful or otherwise" comments and stuck a memorandum on a notice board at the BMW International Open in Germany on Thursday to remind players of their responsibilities.

Morrison wrote on Twitter that the Celtic Manor course was a "dump," adding: "one more round and then can't get over that bridge quick enough!"

The 27-year-old Englishman apologized for his comments during the May 30-June 3 Wales Open but will still be fined by the Tour.