Querrey advances in Florida

Defending champion Sam Querrey reached the Delray Beach Open quarterfinals in Florida by hitting 13 aces and winning 24 of 25 first-serve points in a 6-2, 6-3 victory over fellow American Jared Donaldson. Querrey will face seventh-seeded Juan Martin del Potro of Argentina, who beat Damir Dzumhur, 7-6 (5), 4-6, 6-3. In other All-American action, Donald Young eliminated 19-year-old Taylor Fritz, 4-6, 6-3, 6-4.

Top-seeded Angelique Kerber and Caroline Wozniacki reached the semifinals of the Dubai Tennis Championships in the United Arab Emirates. Kerber beat Ana Konjuh of Croatia, 6-3, 6-2. She will play seventh-seeded Elina Svitolina, who defeated American Lauren Davis, 6-0, 6-4. Wozniacki defeated American Catherine “Cici” Bellis, 6-3, 6-2.

The Tampa Bay Buccaneers released cornerback Alterraun Verner. Verner, 28, who played at UCLA, was with Tampa Bay from 2014 to 2016. Tampa Bay will save $6.5 million in salary cap room with the move . ... The Denver Broncos told offensive tackle Russell Okung they will not be picking up his option, which would have kept him with the team and guaranteed him $21 million . ... The New York Jets released right tackle Breno Giacomini and kicker Nick Folk. The moves will save the team $4.5 million for Giacomini and $3 million for Folk.

Josh Hamilton was back at Rangers spring training camp in Arizona on Thursday, and feeling confident after an examination in Texas showed no significant structural damage to his surgically repaired left knee. Hamilton said he was concerned when he felt a sudden pain when doing some running drills Tuesday.