Southampton are not giving up on their pursuit of Celtic star Matt O’Riley as Russell Martin continues to target a deal. Russell Martin will be happy with how his Southampton squad have started pre-season, with youth stars Tyler Dibling and Sam Amo-Ameyaw standing out in both friendly wins so far. With six of his seven summer signings – the seventh being Adam Lallana – having already got minutes under their belt in either the win over Eastleigh, Bordeaux, or both, Martin has enjoyed a productive start to the summer. However, the Southampton boss is in no mood to see the summer spending come to…