DANNY MULLEN may have been without a club this summer but the striker has revealed that training sessions with Hearts centre-half Craig Halkett helped him maintain his fitness ahead of sealing a move to Firhill.
The 27-year-old centre-forward left Dundee at the end of last season once his contract with the Tayside club had expired, and the former Livingston and St Mirren attacker signed a one-year deal with Partick Thistle on Thursday.
