Aug 18, 2013, 11:10 AM EDT
Frank Lampard looked for the bottom left corner and McGregor saw it coming, saving the penalty and keeping it level inside six minutes.
McGregor is an experienced keeper, having made over 200 appearances at Scottish side Rangers before spells at Besiktas and now Hull City.
The scores remain level at 0-0, but Chelsea are dominating early. You can watch live on NBC Sports Live Extra.
- Lessons from 2010 say U.S. squad as much about opportunity, circumstances as youth 0
- Premier League Power Rankings: Familiar faces jostle for the top spot – Week 1 2
- U.S. roster for Czech Republic: Quick look at some of the newer names 4
- Plenty of surprises in US national team roster for Czech Republic friendly 1
- Analysis: Arsenal, Manchester City handed tough Champions League draw 1
- Full draw: European giants collide as UEFA Champions League groups set 7