FC Barcelona's Lionel Messi was back at training on Saturday after Spanish soccer clubs resumed training on Friday   This was the first time since activity was halted due to the coronavirus pandemic   Coach Diego Simeone led training with his Atletico Madrid squad on Saturday, while Valencia CF and Real Betis were also gearing up for the big comeback.   Organising body La Liga said clubs in the top two divisions would return to individual training following a protocol agreed with Spain's sports and health authorities and which guaranteed the safety of players and staff.   The protocol obliges players to undergo testing for the novel coronavirus before they can return to training facilities