Played a major part in the Bulls' promotion to League One, Trent departed in summer 2008 to concentrate on playing in the Beijing Olympics
Established Australian U23 international McClenahan arrived at Edgar Street having signed from West Ham via a season-long loan at MK Dons.
The Aussie has remained a reliable and energetic right full-back for the duration of his Hereford career to date and maintained his average of one goal a season for United with a 20-yard missile against Lincoln City.
For his country, the youngster has won nine U20 caps to add to the seven picked up for the U23 side where he has also been deployed in the centre of defence as well as his more familiar position on the right.
Failed to agree a new deal with the Bulls in summer 2008 after spending the entire close-season with the Australia U23 squad preparing for the Beijing Olympics.