Kick Off: Four USOC duels on tap | Lions eye timely hire | ASG vote ending

Here is everything you need to know about MLS and North American soccer this morning:

All-Star voting ends Wednesday

Time is running out to get your MLS All-Star team ballots in! With Atlanta United dominating thus far, the voting will close near midnight Pacific Time. VOTE NOW

Open Cup bouts at Atlanta, LAFC

The final four Lamar Hunt US Open Cup quarterfinal berths will be won on Wednesday, with Atlanta United hosting Chicago in the headlining match-up (7:30 pm ET | The Five Stripes have taken two of the three previous meetings between the two, enjoying a 4-0 rout the only other time they played at Mercedes-Benz Stadium. PREVIEW

Bob Bradley's LAFC side will play their first ever round-of-16 game against the visiting Sacramento Republic (10:30 pm ET | The expansion side have yet to lose a home game in any competition, going 3-0-3. PREVIEW

Quarterfinal place up for grabs in D.C.

D.C. United will try to end a three-year string of round-of-16 exits when they "welcome" Open Cup visitors Orlando City, playing for the first time in the post-Jason Kreis era, on Wednesday night (7 pm ET | PREVIEW

A pair of USL sides will clash on Wednesday, with Louisville City and guests Nashville SC each aiming for a first ever quarterfinal place (7 pm ET | The The team have evenly split their league meetings, with both posting a 2-0 win at home. PREVIEW

Lions eye timely hire

In an interview with ProSoccerUSA, Lions CEO Alex Leitao says they'll waste no time finding a new head coach after the team parted ways with Kreis on Friday. Among the names being considered, according to ESPN analyst Taylor Twellman in a Tuesday report, are former Brazil national team coaches Dunga and Luiz Felipe Scolari, as well as recently-departed Portland boss Caleb Porter and current Iran national team and ex-MetroStars manager Carlos Queiroz.  READ MORE

Geiger takes charge

Geiger in action on Wednesday. | USA Today Images

Two-time MLS Referee of the Year Mark Geiger took charge of the first game in his second World Cup on Wednesday, ably managing Portugal's narrow 1-0 win over Morocco. Geiger's road to Russia has been as long as many of the players he's refereeing, as detailed by's Charles Boehm. READ MORE

No Power Rankings shake-ups

The shake-ups were minor in this week's Power Rankings. Orlando City were the only team to move as many as two rungs in either direction. READ MORE

Columbus' No. 9 factory

The resurgence of Gyasi Zardes this season is shining a light on the consistently happy home created for strikers by Columbus boss Gregg Berhalter. Sam Stejskal examined how he does it. READ MORE

Injury report: Toronto FC, Portland

Out since April, Toronto FC center back Drew Moor has resumed light training. The Reds are also hoping to have Jozy Altidore and Chris Mavinga back with the group in the coming weeks. READ MORE

Over in Portland, the Timbers are getting close to a healthy defense. Julio Cascante and Liam Ridgewell have been passed fit for their weekend league tilt with Atlanta, and Roy Miller looks to be nearing a surprise early return after rupturing his Achilles in November. READ MORE Must-Watch

Rising Star: New York Red Bulls defender Michael Murillo