Toronto has a lot of pitching issues these days; one of which from an unlikely source if you go by last year's numbers. Ricky Romero has been a train wreck this season (4.94 ERA, 1.43 WHIP) and as
points out, his biggest problem has been walks. Romero has issued 52 free passes in 98.1 innings whereas last season he walked only 80 batters in 225 innings.
The obvious difference comes in his walk rate, and even in today’s big inning, the walks were a problem. Romero walked 10.3% in his rookie season, then he walked 9.3% in his decent followup, and 8.7% in his breakout season last year. Now his walk rate is at a career-worst 11.3%.