Tennis-Round-up from Day One at Wimbledon

LONDON, June 27 (Reuters) - A round-up of action from the first day of Wimbledon on Monday: * FEDERER DOWNS PELLA IN STRAIGHT SETS Third seed Roger Federer never found his best fluent form but was good enough to beat Guido Pella of Argentina 7-6(5) 7-6(3) 6-3 and reach the second round. Federer sees off Pella in first round * DJOKOVIC OVERPOWERS WARD World number one and defending champion Novak Djokovic made a comfortable start by beating Britain's James Ward 6-0 7-6(3) 6-4 to move into the second round. Djokovic makes solid start to defence * BRITON WILLIS IN SHOCK HOME VICTORY World number 772 Marcus Willis proved the unlikeliest of home Wimbledon heroes, sealing a fairytale 6-3 6-3 6-4 victory over Ricardas Berankis, ranked more than 700 places above him. Willis in double dreamland as Federer looms * VENUS OVERCOMES YOUNGSTER VEKIC American eighth seed Venus Williams, the oldest player in the women's singles draw, beat teenager Donna Vekic 7-6(3) 6-4. Languid Venus rolls back the years * FOURTH SEED KERBER SEES OFF ROBSON Angelique Kerber beat British wildcard Laura Robson 6-2 6-2 to notch up her first grand slam victory since hoisting the Australian Open trophy in January. Kerber finally wins grand slam match * MUGURUZA EDGES THROUGH IN THREE SETS Women's second seed Garbine Muguruza of Spain beats Italian Camila Giorgi 6-2 5-7 6-4 to advance. Paris champion labours to win * NISHIKORI DOWNS GROTH Men's fifth seed Kei Nishikori of Japan overcame Australian Sam Groth 6-4 6-3 7-5. Baseline maestro Nishikori subdues Groth * RAONIC POWERS PAST CARRENO BUSTA Men's sixth seed Milos Raonic, who is coached by John McEnroe, beat Spain's Pablo Carreno Busta 7-6(4) 6-2 6-4 in their first-round match. Raonic up and running as Big Mac watches * IVANOVIC CRASHES OUT IN FIRST ROUND Women's 23rd seed Ana Ivanovic suffered a surprising first- round exit, losing to Russia's Ekaterina Alexandrova 6-2 7-5. Ivanovic blames wrist injury for loss * BEGU BUNDLED OUT BY WITTHOEFT Romania's Irina-Camelia Begu became the first seeded player to exit the tournament. The women's number 25 seed lost 6-1 6-4 to Germany's Carina Witthoeft. (Compiled by Simon Jennings and Nivedita Shankar in Bengaluru, Editing by Ed Osmond)