Convention: Hockey article titles should avoid the use of diacritics and other non-English characters.
Rationale
See Wikipedia talk:WikiProject Ice Hockey/Player pages format
Exceptions
Hockey articles in which the most common way to spell the subject in English involves the use of diacritics and other non-English characters, should retain that spelling. In other words, this is the "exception to every rule".
Note
Non-hockey articles are not reflected here and this has no bearing over non-hockey related articles.