Per Mertesacker has described Dayot Upamecano "one of the most exciting central defenders the world has to offer" amid talk of Arsenal's interest in the RB Leipzig star.
Upamecano is currently enjoying the best season of his career to date, having played a key role in Leipzig's run to a third-place Bundesliga finish and the semi-finals of the Champions League.
His latest performance helped Julian Nagelsmann's men upset Atletico Madrid in the last eight of Europe's elite competition, as he kept the likes of Diego Costa, Marcos Llorente and Yannick Carrasco quiet during a stunning 2-1 win in Lisbon.