He said the signing generated some striking social media statistics.
"Alexis Sanchez has set a new January signing record in terms of shirt sales, three times the previous record".
Time will tell whether Sanchez is worth his huge wage packet, but the Chilean has made a decent start to life at United. "It was the biggest United post on Instagram with two million likes and comments", he added.
"To put that into context, the announcement posts generated 75 per cent more interactions than the announcement of the sale of the world's most-expensive player last summer when Neymar moved from Barcelona to Paris Saint-Germain".
United's operating profit of £28.7m in the second quarter represented a 23 per cent drop on the same period a year ago, a fall the club attributed to U.S. president Donald Trump's corporate tax cut from 35 to 21 per cent. The changes required the team, which is owned by the American Glazer family and listed on the New York Stock Exchange, to make an accounting write-off of £48.8m ($68 million).
Several large corporations have signalled that the law will result in a short-term hit on earnings repatriated from overseas and due to re-valuation of assets. This adjusts projected revenue for the year 2018 to £585 million.
Alexis joined Barcelona from Udinese in 2011 and spent three years with the Catalan side, winning a Liga title as well as the Club World Cup under the guidance of Pep Guardiola.
Woodward also gave an insight into the ongoing discussions over the next Premier League television contract, with Amazon and Facebook rumoured to be rivalling Sky and BT Sport for the next round of rights.
Woodward pointed to United's "solid business model" as being behind them signing Sanchez and extending Mourinho's deal, while it was confirmed that club's guidance figures are based on reaching the Champions League quarter-finals.