Getty Images SportParshva ShahCompetition for USMNT star Gio Reyna? Borussia Dortmund monitoring Belgian wonderkid Stanis IdumboTransfersUSMNT star Giovanni Reyna could face some serious competition at Dortmund as the Bundesliga giants have set their sights on Sevilla's Stanis Idumbo.Article continues belowArticle continues belowArticle continues belowArticle continues belowReyna's future at Dortmund potentially in jeopardyBVB monitoring 19-year-old IdumboAttacking midfielder shining at SevillaFollow GOAL on WhatsApp! 🟢📱