If you plan on taking on the Phillies home opener at Citizens Bank Park or John Mayer's show at the Wells Fargo Center tonight, you might want to start planning your route now.

In a traffic alert issued Thursday, organizers at the Wells Fargo Center advised attendees of the two events to leave plenty of travel time, and possibly seek alternate routes to South Philly.

The Phillies home opener begins at 3:05 p.m., which Mayer scheduled to start his show at 7:30 p.m. The two events, which overlap in timing somewhat, stand to bring plenty of folks — and cars — to the sports complex this evening.

To avoid the traffic crunch, Phillies lovers and John Mayer fans alike can take the Broad Street Line subway to AT&T station, which is within walking distance of the Wells Fargo Center and Citizens Bank Park. Rides run $2.25 cash, or $1.80 (the same as a token) if you use the SEPTA Key Card.

Car share service Uber, meanwhile, has teamed up with the Phillies to offer $2.15 uberPOOL rides to or from Citizens Bank Park from 1 p.m. to 8 p.m. The deal is not offered for individual rides, and uberPOOL can sometimes take longer than an average trip, so try and get on the road early.

If you insist on driving to the game or the gig, the Wells Fargo Center recommends leaving early. Car parking at Citizens Bank Park runs $18, according to the Citizens Bank Park website. Parking for Mayer's concert at the Wells Fargo Center is $33, and requires a reserved parking pass, according to the Wells Fargo Center website.

The Phillies' home opener comes following a 7-4 loss to the Cincinnati Reds on Thursday. Today, the Phils face off against the Washington Nationals.

Mayer, meanwhile, is in town touring in support of The Search for Everything: Wave One, which the Grammy Award-winning artist released in January. He last played a headlining solo show in Philadelphia in Feb. 2010.