Whitnall School District - Tennis - Boys
https://www.cms4schools.com/news_rss.cfm?detailid=869194&memberid=848
Whitnall School District - Tennis - Boysen-usExercises
//www.whitnall.com/cms_files/resources/Whitnall Tennis SPeed and Agility 1-41.pdf
At home drills
https://www.youtube.com/watch?v=nFsLTIx9D64
Six tennis challenges
https://www.youtube.com/watch?v=vAtM0bNCXNQ
Server drill
https://www.google.com/search?q=how+to+practice+tennis+serve+at+home&client=safari&channel=iphone_bm&biw=1121&bih=800&ei=YD8JZIelJvajqtsP4Oid4As&oq=at+home+tennis+drills&gs_lcp=Cgxnd3Mtd2l6LXNlcnAQARg
Drills and exercises
https://www.youtube.com/watch?v=-QSS3RAlslM&list=RDCMUCNOhED7RHmzzoxS3YnAUwPQ&start_radio=1&rv=-QSS3RAlslM&t=249