The old Loughor Viaduct has been replaced and work is focusing on laying two tracks through Gowerton for the start of services on Monday.
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Carl Edwards has the latest edition of Newsweek Wales
The bitter rivals looked neck and neck over the first eight rounds, but Bellew crucially found the extra gears to win
Wales held a 16-15 lead over the world champions with 11 minutes remaining but the hope of a first victory was destroyed in the final stages