Overriding Page Title with Contextual Links
It can be done by placing the following code in your theme's template.php file (please note that my fields were named field_last_name and field_first_name, and my view was a page display with the view name 'user_stuff' - so please adjust your accordingly - you can inspect your values by installing devel and uncommenting the dpm statement).

function MYTHEME_views_pre_render(&amp;$view){
  //dpm($view);
  if ($view-&gt;name == 'user_stuff' &amp;&amp; $view-&gt;current_display == "page" &amp;&amp; $view-&gt;total_rows &gt; 0) {
    $first_name = $view-&gt;result[0]-&gt;field_field_first_name[0]['rendered']['#markup'];
    $last_name = $view-&gt;result[0]-&gt;field_field_last_name[0]['rendered']['#markup'];
    $site_name = variable_get('site_name', 'My Site Name');
    $view-&gt;build_info['title'] = "$first_name $last_name | $site_name";
  }
}


There is also no need for the pager and you should rather set your view to display 1 item only. Also note that you are outputting the rendered markup (as opposed to the raw value) so there is no need to sanitise the values.