TORONTO, Canada (AFP) — Ghana scored a dramatic 1-0 victory over Panama in their opening World Cup Group L clash in Toronto on Wednesday. Caleb Yirenkyi bundled in the winning goal in the fifth minute of stoppage time, sending thousands of Ghanaians in Canada's largest city into a frenzy and settling an otherwise attritional battle. Both sides largely struggled to generate chances in the first half after Panama striker Cecilio Waterma's second minute attempt was steered away by outstretched Ghana goalkeeper Lawrence Ati Zigi.