Syntax error in XQuery query

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Hi,
I am trying to run this query:

for $p in //Player where $p/Pohlavi = ‘Muž’ order by $p/Tour_Points DESC return $p

Pohlavi is Gender in English and Muž is Man.

... but it throws this error: Stopped at line 1, column 39:
[XPST0003] Comparison is incomplete.
Column 39 is somewhere here: where $p/Pohlavi = ‘Muž’



In asp.NET aplication it expects something diffrent somewhere.

Could any solve this error and write the correct query? I want to select all players, with Gender Man, ordered by Tour_Points DESC and return all attributes.

Here is an XML:

<DataSet>
  <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" id="NewDataSet">
    <xs:element name="NewDataSet" msdata:IsDataSet="true" msdata:UseCurrentLocale="true">
      <xs:complexType>
        <xs:choice minOccurs="0" maxOccurs="unbounded">
          <xs:element name="Player">
            <xs:complexType>
              <xs:sequence>
                <xs:element name="Nickname" type="xs:string"/>
                <xs:element name="Jmeno" type="xs:string" minOccurs="0"/>
                <xs:element name="Prijmeni" type="xs:string" minOccurs="0"/>
                <xs:element name="Pohlavi" type="xs:string" minOccurs="0"/>
                <xs:element name="Play_by_Play_Name" type="xs:string" minOccurs="0"/>
                <xs:element name="Role" type="xs:string" minOccurs="0"/>
                <xs:element name="Datum_Registrace" type="xs:dateTime" minOccurs="0"/>
                <xs:element name="Tour_Points" type="xs:int" minOccurs="0"/>
                <xs:element name="Email" type="xs:string" minOccurs="0"/>

...

    <NewDataSet>
      <Player diffgr:id="Player1" msdata:rowOrder="0" diffgr:hasChanges="inserted">
        <Nickname>Dalo</Nickname>
        <Jmeno>Dalibor</Jmeno>
        <Prijmeni>Přibyla</Prijmeni>
        <Pohlavi>Muž</Pohlavi>
        <Play_by_Play_Name>Pribyla</Play_by_Play_Name>
        <Role>uživatel</Role>
        <Datum_Registrace>2012-10-24T20:07:24.247+02:00</Datum_Registrace>
        <Tour_Points>0</Tour_Points>
        <Email>dalibor.pribyla@atlas.cz</Email>
        <Aktivita>1</Aktivita>
      </Player>
      <Player diffgr:id="Player2" msdata:rowOrder="1" diffgr:hasChanges="inserted">
        <Nickname>Doktor</Nickname>
        <Jmeno>Aleš</Jmeno>
        <Prijmeni>Poncza</Prijmeni>
        <Pohlavi>Muž</Pohlavi>
        <Play_by_Play_Name>Poncza</Play_by_Play_Name>
        <Role>uživatel</Role>
        <Datum_Registrace>2012-10-24T20:07:24.25+02:00</Datum_Registrace>
        <Tour_Points>0</Tour_Points>
        <Email>ales.poncza@gmail.com</Email>
        <Aktivita>1</Aktivita>
      </Player>