rewrite this title 'Young star' Christen sprints to win at Challenge Mallorca-Trofeo Calvia

Summarize this content to 2000 words in 6 paragraphs “Jan Christen (UAE Team Emirates-XRG) sprinted clear inside the final kilometre to win the Challenge Mallorca-Trofeo Calvia ahead of Christian Scaroni (XDS Astana).”