Tablesorter header

Tablesorter header

Hi, I want to sort a column with tablesorter plugin but I want to disabled the header so user cannot sort it manually.
For example I have this data:

<table class='tablesorter'>
<tr>
       <th>Name</th>
       <th>Age</th>
</tr>
<tr>
       <td>Peter</td>
       <td>32</td>
</tr>
<tr>
       <td>Brian</td>
       <td>28</td>
</tr>
</table>

From that data, I want to automatically sort the "age" column ascending but I don't want user can sort it manually.
Can I do this with tablesorter plugin?

Regards,
~otz~