Lei wins men's foil gold

"I did not expect this, I was not thinking about this," Lei, who prevailed 15-13, said through an interpreter with his pristine medal around his neck.

Lei forged an early 6-2 lead but Abouelkassem hit back. At one point he led 13-11 but Lei, who placed eighth at the 2008 Games, regained his composure to triumph.

The 28-year-old, ranked ninth in the world, had beaten former world champion Andrea Baldini in the semi-final round.

Abouelkassem, who beat two former world champions in London, was equally amazed to be standing on the podium, the first fencer from Africa to do so.

Byungchul Choi of South Korea took bronze.

Much was expected of Italy's men's foil team but they failed to match their female counterparts who enjoyed a clean sweep of the medals on opening day.

Baldini's path to the 2012 games was longer than most, having tested positive for a banned diuretic before the Beijing Olympics.

He protested his innocence and fencing's world governing body FIE noted an Italian prosecutor deemed an unidentified third party was responsible for his unknowingly ingesting a banned substance. Sanctioned with ineligibility for six months, he returned to win the 2009 world title.

"Yes, every match was very physical. I felt a lot the stress, not just from today but the last four years to think about being here at the Olympics. Yeah, I am tired," he said through a translator, adding he will try for the 2016 games in Rio de Janeiro.

Abouelkassem, born to an Algerian mother and Egyptian father, said he feared most of all facing Baldini in the bronze medal match, using that motivation to beat Choi 15-12 in the semi-finals and head for the gold medal match against Lei.

"I still cannot believe it. I had to take 15 minutes to realize what I did. I am very happy," he said of his silver medal.

"It was a dream of my dad and he left me three months ago," the 2010 junior world champion said in reference to the death of his father.

Asked how important this medal was for his country, Abouelkassem said: "Not just my country but the whole of Africa.

They need this medal to improve the fencing in Africa. Also in Egypt we need more money and attention from media."