GUADALAJARA, Spain: Late strikes from Andreas Christensen and Marcus Rashford secured a hard-fought 2-0 victory for Barcelona against third-tier side Guadalajara on Tuesday, sending the Catalans through to the last 16 of the Copa del Rey. Barcelona labored for much of the match at the Pedro Escartin stadium, holding over 80 percent of possession but struggling to break down a disciplined five-man Guadalajara defense. The home side posed a constant threat on the counter-attack and frustrated the European heavyweights for long stretches.