Jacobs, who is 14 years, four months and 29 days old, signed a deal with the second tier United Soccer League club and could make his debut on Saturday against Las Vegas Lights FC.
Austria beat the United States in extra time on Saturday to go into the semi-finals of the Under-20 World Cup where they will meet the Czech Republic, who beat Spain on penalties.
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India qualified automatically for the event as hosts. They have prepared well with the All India Football Federation (AIFF) sending the players for training tours in Europe and a tournament in Mexico but the home side are the clear underdogs.
New Zealand are placed in Group B along with Turkey, Paraguay and Mali.