Pakistan, June 13 -- Sweden boast a formidable strike partnership in Alexander Isak and Viktor Gyokeres, but the two will have their work cut out in their opening World Cup Group F game on Sunday when they take on a Tunisia side that didn't concede a goal in qualifying. The 28-year-old Gyokeres arrives in the US fresh from winning the English Premier League title with Arsenal, and it was his late goal in a 3-2 playoff win over Poland that punched Sweden's ticket to the World Cup, where they will also face the Netherlands and Japan. Strike partner Isak may have struggled with injuries since his big-money move from Newcastle United to Liverpool last September, but on his day the 26-year-old has a blend of speed and skill that can leave even...