Arsenal owner Stan Kroenke has made a new investment pledge in the United States that gives an indication about his long-term ambitions in sport. Kroenke Sports & Entertainment, the investment vehicle of the Missouri-born billionaire, encompasses nine sports teams in total. Aside from the Arsenal men’s and women’s teams, all of those investments are in the United States. Of those in the US, all but one – NFL side the LA Rams – are in the state of Colorado. Kroenke also owns billions of dollars worth of property, including the world-classSoFi Stadium in Los Angeles where Arsenal will play Man U…