Alexander, who at 6 ft 8 in (2.03 m) plays both forward positions,[1] was selected for the 2007 All-Big East squad during his collegiate career with West Virginia and was an All-American Honorable Mention.
[3] His maternal grandfather was Jewish, which made him eligible for Israeli citizenship while playing for Maccabi Tel Aviv.
[6] His brothers, John and Jeremy, became the first foreigners to win the Beijing High School basketball MVP award and did so in successive seasons.
Alexander then returned to the U.S. to live in Mount Airy, Maryland, where he spent his junior and senior seasons playing for Linganore High School.
While he only played a minor role coming off the bench his junior year, his senior season he boasted averages of 14.8 points, 7.0 rebounds and 2.8 assists per game, which earned him first-team Monocacy Valley Athlete League Chesapeake conference honors.
Determined to make his dream a reality, he opted to attend Hargrave Military Academy in Chatham, Virginia.
As a freshman, he played in 10 games, while starters Kevin Pittsnogle and Mike Gansey led the starting senior class.
[7] His best game his freshman year was against Washington & Jefferson College where he scored five points and blocked five shots on December 3.
After an 11-point performance versus Providence on February 2,[10] Alexander went without scoring over double-digits for the rest of the regular season[11] and the Big East tournament.
Alexander also only totaled 18 points in the Mountaineers' NIT run, which ended with a championship win over Clemson on March 29.
Afterwards, West Virginia alumnus Bob Huggins left Kansas State for the head coaching job at WVU.
[17] In the season-opening exhibition game against Mountain State, Alexander scored 19 points, grabbed 6 rebounds, totaled 5 blocks, and had one steal in the 88–65 win.
[31] After dealing with injuries, Alexander bounced back on February 2, 2008, with 19 points and 8 rebounds in West Virginia's 77–65 away win against Providence.
[35] In the February 23 home game versus Providence, Alexander scored 21 points and grabbed 7 rebounds in West Virginia's 80–53 win.
[41] Alexander finished the regular season in the 83–74 overtime victory over St. John's at Madison Square Garden on March 8 with 29 points and 10 rebounds, including 7 in the extra period.
[43][50] In the second-round victory over the #2-seed Duke Blue Devils, he scored 22 points and grabbed 11 rebounds as the Mountaineers won 73–67.
Alexander was described as the best athlete on paper at the draft overall, by having the second-most number of 185-pound bench reps (24), the second-highest max touch (12' ½") and the second-fastest three-quarter sprint time (2.99 seconds).
In the offseason prior to the 2009–2010 season, starting forward Richard Jefferson was traded to the San Antonio Spurs, potentially freeing up playing time for Alexander.
[57] After missing time because of a hamstring injury, Alexander was assigned to the NBA D-League's Fort Wayne Mad Ants on January 20, 2010.
Instead Alexander was signed by team's D-League affiliate, the Santa Cruz Warriors, where treatment was administered to both his leg and overall muscle performance.
[69] On December 25, 2014, Alexander left Santa Cruz and signed with Maccabi Tel Aviv of the Israeli Premier League and the Euroleague for the rest of the season.
[70] Alexander won the 2015 Israeli State Cup with Maccabi, as well as reaching the 2015 EuroLeague Quarterfinals, where they eventually were eliminated by Fenerbahçe.
[71] On January 24, 2016, Alexander recorded a season-high 27 points, shooting 11-of-15 from the field, along four rebounds and two steals in a 78–86 loss to Red October Cantù.
On August 3, 2016, Alexander returned to Maccabi Tel Aviv for a second stint, signing a one-year deal with an option for another one.
[73] On May 6, 2017, Alexander recorded a season-high 25 points, shooting 10-of-11 from the field, along with three rebounds and two assists in an 88–74 win over Maccabi Rishon LeZion.
[75] On November 12, 2017, Alexander recorded a then career-high 29 points, shooting 12-of-16 from the field, in a 104–74 win over Maccabi Rishon LeZion.
[81] On April 21, 2019, Alexander recorded a season-high 26 points, shooting 10-of-19 from the field, along with eight rebounds in a 67–76 loss to Teksüt Bandırma.