Immobile is on course to overtake Gonzalo Higuain's Serie A record of 36 goals scored for Napoli in the 2015-2016 season.
The 22-year-old, playing in his fourth Test after being called up as cover for his sick Somerset team-mate Jack Leach, finished the day with five for 51.
Dukhan, with its elevated limestone formations, is easily the best location for road
cycling in Qatar.
Ahye, sixth in both the 100 and 200m at the 2016 Rio Olympics, and again sixth in the 100m at the 2017 London world championships, is suspended until April 2021, meaning she will miss this year's Tokyo Olympics.
Al Attiyah won the final stage but navigation mistakes in the 10th stage proved too costly.
Former number one Wozniacki announced in December that she would retire from tennis after Australian Open to focus on other things, including starting a family with husband and former NBA star David Lee.