Roger Federer makes winning return against Mischa Zverev in Stuttgart

Roger Federer returned from his clay-court hiatus with a three-set victory over Mischa Zverev at the Mercedes Cup in Stuttgart.

The 36-year-old was playing his first match since losing to Thanasi Kokkinakis in the second round of the Miami Open in March, having chosen to skip the entire clay stretch for the second successive season.