The national anthems of hosts Leicester Tigers and visitors Los Pumas will be led by international singing star Josefina Achaval at Welford Road next Saturday.A professional singer for the last 12 years, as well as working as an actor, Josefina is also the partner of Argentina international wing Gonzalo Camacho.    With a career in TV and theatre, she has worked with renowned producers and production companies, including Disney Latin America, and performed for international sports events such as rugby Test matches, ATP World Tennis Finals and at the O2 Arena for the HPA Gaucho International Polo.   She will also perform at several events around the Rugby World Cup, including a BBC Live Concert at the De Montfort Hall in support of the Matt Hampson Foundation.   Tickets for Saturday’s Marcos Ayerza Testimonial Challenge between Tigers and Los Pumas – in their final fixture before the Rugby World Cup – are on sale now from the Tigers ticket office.   The office is open in the Club Store at Welford Road 9am-5pm weekdays or call 0116 319 8888 (option 2) between 8.30am and 5pm.   The ticket office is closed to visitors and callers this Sunday and Bank Holiday Monday, but you can buy online any time by clicking here.