Could Christos Tzolis be the x-factor in Arsenal's title defense?

LONDON — Arsenal eased past Coventry City on Friday, as they opened up their Premier League title defense with a routine 3-0 win in north London as a new signing Christos Tzolis dazzled. The Greek winger, 24, was superb on the left as he had more touches in the box and more shots than any other player on the pitch as he created so many chances. He set the tone early in the first half as he skipped inside and curled a shot just over before being involved in Arsenal's opening two goals. Tzol