About Me
Borriello grew through the ranks of giants AC Milan but, having never received quality playing time, he served successive loans before and after his Serie A debuts in 2002-03.
On December 21, 2006, while serving his first full Milan season, he tested positive for a drug test after the 11th matchday of the 2006/2007 Serie A season. After being confirmed of the given test in January 2007, he was suspended until March 21. On June 21, he was sold to Genoa C.F.C. in a reported £1.3m co-ownership deal with Milan.
On September 26, 2007, Borriello helped Genoa accomplish their first win of the season back in Italy's top flight, netting his first hat-trick at the expense of Udinese Calcio. The game ended 3-2, with the striker scoring from the spot in the 76th minute. Incidentally, in the return game, played on February 24, 2008, in Udine, Borriello hit another hat-trick, in a 5-3 away success, reaching 15 league goals in the process. He finished the season at 19, third behind Juventus pair Alessandro Del Piero and David Trézéguet.