Spanish champions Barcelona are trying to make full use of the forthcoming transfer window; they have targeted English club Tottenham Hotspurs' Welsh international Gareth Bale and have prepared an ambitious £35 million bid for the Spurs star.

Barca boss Pep Guardiola was previously reported to have sent his scouting chief Albert Valentine to monitor the Welshman during Tottenham's win at Fulham on Sunday. Now the Spanish media has reported that the Spurs are facing a difficult situation to hold on to Bale.

The Barca boss is keen to bring in Bale, 22, to bolster the squad's left flank, as the likes of Maxwell, Adriano and Eric Abidal have all failed to manage the attacking left back position. Guardiola is focused on repairing that damage and feels Bale is the best option for the problem area.

Previously Italian clubs AC Milan and Inter Milan, as well as Barcelona's traditional rivals, Real Madrid, had shown an interest in Bale. However, Spurs successfully warded off any attempt at the time. The club also resisted attempts by league rivals Chelsea to sign their Croatian midfielder Luka Modric last summer. This time, however, they may have problems holding on to Bale.

The left back will be under contract till 2015, as he signed a new £75,000-per-week deal in March, according to a Mirror Football report.

Gareth Bale has made 87 appearances for Spurs and has managed to find the back of the net 16 times.